IP Library Granted Patent US 8,877,706
Granted Patent B2
US 8,877,706 · App. 13/838,868 · Granted Nov 4, 2014

Maytansinoid derivatives

Inventors: Shenfeng Li (Belmont, CA); Xiaobin Deng (Guangzhou, CN); Songnuan Tan (Guangzhou, CN); Weijia Tang (Guangzhou, CN); Chao Qin (Guangzhou, CN)
Assignee: Bio-Thera Solutions Ltd., Co.
C07D498/08C07K16/30A61K47/48569
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Quick Facts
Patent No.
US 8,877,706
App. No.
13/838,868
Granted
Nov 4, 2014
Kind
B2
Abstract

Disclosed herein are maytansinoid drug linker derivatives which can be linked to a antigen binding unit (Abu), and maytansinoid drugs linked with an antigen binding unit (Drug-Linker-Antigen binding Unit: D-L-Abu), for targeted delivery to disease tissues. D-L-Abu, D-L-Abu derivatives, and methods relating to the use of such drug conjugates to treat antigen positive cells in cancers and immunological disorders are provided.

Claims (293)

1. A compound of Formula I or I-1:

or a salt thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O; and

in Formula I, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula I-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo.

2. The compound of claim 1 , which is:

or a salt thereof.

3. The compound of claim 1 , which is a compound of Formula III or III-1:

or a salt thereof,

wherein

X is H or Cl;

Y is H or methyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl; and

in Formula III, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula III-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo.

4. The compound of claim 1 , which is a compound of Formula IV-1:

or a salt thereof,

wherein

X is H or Cl;

Y is H or methyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl; and

m is an integer of 1 to 20.

5. The compound of claim 1 , selected from the group consisting of

or a salt thereof.

6. The compound of claim 1 , selected from the group consisting of

or a salt thereof.

7. The compound of claim 1 , which is a compound of Formula V-1:

or a salt thereof.

8. A compound of Formula II or II-1:

or a salt thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O; and

L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — group is independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —;

substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo.

9. The compound of claim 8 , which is:

or a salt thereof.

10. A compound of Formula Ia or Ia-1:

or a pharmaceutically acceptable salt or solvate thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O;

p is selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10;

in Formula Ia, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula Ia-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

Abu is an antigen binding unit.

11. The compound of claim 10 which is:

or a salt thereof.

12. The compound of claim 10 , which is of Formula IIIa or IIIa-1:

or a pharmaceutically acceptable salt or solvate thereof,

wherein

X is H or Cl;

Y is H or methyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl;

p is selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10;

in Formula IIIa, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula IIIa-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

Abu is an antigen binding unit.

13. The compound of claim 10 , which is of Formula IVa-1:

or a pharmaceutically acceptable salt or solvate thereof,

wherein

X is H or Cl;

Y is H or methyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl;

p is selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10;

m is selected from an integer of 1 to 20; and

Abu is an antigen binding unit.

14. The compound of claim 10 , selected from the group consisting of

or a pharmaceutically acceptable salt thereof.

15. The compound of claim 10 , selected from the group consisting of

or a pharmaceutically acceptable salt thereof.

16. A compound of Formula IIa or IIa-1:

or a pharmaceutically acceptable salt or solvate thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

p is selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O;

in Formula IIa, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula IIa-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

Abu is an antigen binding unit.

17. The compound of claim 16 , which is:

or a pharmaceutically acceptable salt or solvate thereof.

18. The compound of claim 10 , wherein Abu is an antigen binding unit with binding specificity to human EGFR.

19. The compound of claim 10 , wherein Abu is an antigen binding unit with binding specificity to human CD20.

20. The compound of claim 10 , wherein Abu is an antigen binding unit with binding specificity to human Her2.

21. The compound of claim 18 , wherein Abu is an antibody, antibody fragment, or cell specific ligands.

22. The compound of claim 10 , wherein Abu is an antibody comprising SEQ ID 1 and 2, or SEQ ID 3 and 4, or SEQ ID 5 and 6, or SEQ ID 7 and 8, or SEQ ID 9 and 10, SEQ ID 11 and 12, or SEQ ID 13 and 14.

23. The compound of claim 10 , wherein Abu is an antibody comprising Bat0202 (SEQ ID NO: 1) and/or Bat0204 (SEQ ID NO: 2).

24. The compound of claim 10 , wherein Abu is Bat0206.

25. The compound of claim 10 , wherein Abu is selected from C225, EGF-ABX, EGF-ABX, NIMO, Matu, rituxamab, Cetuximab, trastuzumab and Pertuzumab.

26. A drug-linker-antigen binding unit conjugate wherein the drug is a maytansinoid and the antigen binding unit is Bat0206.

27. A compound of Formula Id or IId:

or a pharmaceutically acceptable salt or solvate thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH; and

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

p is selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10; and

in Formula Id, L b is selected from C 1 -C 20 alkylene optionally substituted with C 1 -C 4 alkyl, —SO 3 H or —P(O)(OH) 2 , C 3 -C 8 cycloalkylene optionally substituted with C 1 -C 4 alkyl, and C 1 -C 20 alkylene which is optionally substituted with C 1 -C 4 alkyl, —SO 3 H or —P(O)(OH) 2 and wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —S—S—, —SO 2 NR 8 —, or —NR 6 SO 2 ;

in Formula IId, L b is selected from C 1 -C 20 alkylene optionally substituted with C 1 -C 4 alkyl, —SO 3 H or —P(O)(OH) 2 , C 3 -C 8 cycloalkylene optionally substituted with C 1 -C 4 alkyl, and C 1 -C 20 alkylene which is optionally substituted with C 1 -C 4 alkyl, —SO 3 H or —P(O)(OH) 2 and wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, 3-8 membered heterocycloalkylene optionally substituted with one or more C 1 -C 4 alkyl or oxo, —O—, —S—, —S—S—, —NR 8 —, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 ;

BAT0206 is an Anti-EGFR antibody.

28. The compound of claim 27 , wherein, in Formula Id, L b is C 1 -C 20 alkylene which is substituted with C 1 -C 4 alkyl, —SO 3 H or —P(O)(OH) 2 and wherein one or more of the —CH 2 — groups are independently replaced with —S—, —S—S—,

29. The compound of claim 27 , selected from the group consisting of

or a pharmaceutically acceptable salt or solvate thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

p is selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10; and

L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —;

substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

BAT0206 is an Anti-EGFR antibody.

30. The compound of claim 27 , selected from the group consisting of

or a pharmaceutically acceptable salt or solvate thereof,

wherein

X is H or Cl;

Y is H or methyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl;

p is selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10; and

BAT0206 is an Anti-EGFR antibody.

31. The compound of claim 27 , selected from the group consisting of

or a pharmaceutically acceptable salt or solvate thereof,

wherein

BAT0206 is an Anti-EGFR antibody.

32. A compound of Formula Ib or Ib-1:

or a salt thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O;

in Formula Ib, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula Ib-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

AA is an amino acid or thiolated amino acid.

33. The compound of claim 30 , which is selected from the group consisting of

or a salt thereof,

wherein

X is H or Cl;

Y is H or methyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl;

in Formulae IIIb′ and IIIb, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formulae IIIb′-1 and IIIb-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

AA is an amino acid or thiolated amino acid.

34. The compound of claim 32 , which is of Formula IVb-1:

or a salt thereof,

wherein

X is H or Cl;

Y is H or methyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1 -C 6 alkyl;

m is selected from an integer of 1 to 20; and

AA is an amino acid or thiolated amino acid.

35. The compound of claim 32 , wherein AA is

wherein represents point of connection to the rest of the molecule.

36. The compound of claim 32 , selected from the group consisting of

or a salt thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

m is selected from an integer of 1 to 20.

37. A compound selected from the group consisting of:

or a salt thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O;

L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 ,wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

AA is an amino acid or thiolated amino acid.

38. A pharmaceutical composition comprising a compound of claim 10 .

39. A method of treating a proliferative, inflammatory or immunologic disease or condition in a patient in need thereof comprising administering an effective amount of a compound of claim 10 .

40. A method of treating a proliferative, inflammatory or immunologic disease or condition in a patient in need thereof comprising administering an effective amount of a compound of Formula Ib or Ib-1,

wherein the compound of Formula Ib or Ib-1 is generated as a result of a metabolic chemical reaction following administration of a compound of claim 9 to the patient.

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O;

in Formula Ib, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula Ib-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo; and

AA is an amino acid or thiolated amino acid.

41. The method of claim 40 , wherein the compound of Formula Ib or Ib-1 is

42. A method of treating a proliferative, inflammatory or immunologic disease or condition in a patient in need thereof comprising administering an effective amount of a compound of Formula IIb or IIb-1,

wherein the compound of Formula IIb or IIb-1 is generated as a result of a metabolic chemical reaction following administration of a compound of claim 14 to the patient.

43. The method of claim 40 , wherein the antigen binding unit is an antibody comprising SEQ ID 1 and 2, or SEQ ID 3 and 4, or SEQ ID 5 and 6, or SEQ ID 7 and 8, or SEQ ID 9 and 10, SEQ ID 11 and 12, or SEQ ID 13 and 14, or an equivalent thereof.

44. A method of preparing a compound of claim 10 or a pharmaceutically acceptable salt thereof, comprising contacting an antigen binding unit with a compound of Formula I or I-1:

or a salt thereof,

wherein

X is hydrogen or halo;

Y is selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and —C(═O)R 5 ;

R 1 is selected from the group consisting of hydrogen, —OH, —OC(═O)R 5 and —OR 5 ;

R 2 is hydrogen or C 1 -C 6 alkyl;

R 3 is methyl, —CH 2 OH, or —CH 2 C(═O)R 6 ;

R 4 is —OH or —SH;

R 5 is C 1 -C 6 alkyl or benzyl;

R 6 is C 1 -C 6 alkyl, phenyl or benzyl;

R 7 is hydrogen, C 1 -C 6 alkyl or an amino acid side chain;

R 8 is hydrogen or C 1-6 alkyl;

each Z is independently hydrogen or C 1 -C 4 alkyl, or the two Z with the carbon atom to which they are attached form a C═O; and

in Formula I, L is selected from substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —S—, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo;

in Formula I-1, L is selected from optionally substituted C 1 -C 20 alkylene, C 3 -C 8 cycloalkylene, optionally substituted C 1 -C 20 alkylene wherein one or more of the —CH 2 — groups are independently replaced with C 3 -C 8 cycloalkylene, —O—, —S—, —NR 8 —, —C(O)—, —C(═O)NR 8 —, —NR 8 C(═O)—, —SO 2 NR 8 —, or —NR 8 SO 2 —; substituted C 1 -C 20 alkylene is C 1 -C 20 alkylene substituted with 1 to 4 —SO 3 H, —P(O)(OH) 2 or R 23 , wherein each R 23 is independently C 1-6 alkyl optionally substituted with 1 or 2 substituents independently selected from the group consisting of —SH, —S—C 1-4 alkyl, —CONR 11 R 11 , —CO 2 H, and —NR 11 R 11 , wherein each R 11 is independently hydrogen, alkyl, aryl, cycloalkyl, cycloalkenyl, heteroaryl, and heterocyclic, or the two R 11 together with the nitrogen form a heterocyclic, wherein the heterocyclic is optionally substituted with one or two oxo.

45. A method of preparing a compound of Formula Va-1:

or a pharmaceutically acceptable salt thereof, comprising contacting an antigen binding unit with a compound of Formula V-1:

or a salt thereof.

46. The method of claim 44 , wherein the antigen binding unit is an antibody comprising SEQ ID 1 and 2, or SEQ ID 3 and 4, or SEQ ID 5 and 6, or SEQ ID 7 and 8, or SEQ ID 9 and 10, SEQ ID 11 and 12, or SEQ ID 13 and 14.

Assignments (2)
CHANGE OF NAME Recorded May 14, 2019
From: BIO-THERA SOLUTIONS, LTD., CO.
To: BIO-THERA SOLUTIONS, LTD.
Reel/Frame 049179/0171 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2013
From: LI, SHENGFENG; DENG, XIAOBIN; TAN, SONGNUAN; TANG, WEIJIA; QIN, CHAO
To: BIO-THERA SOLUTIONS, LTD., CO.
Reel/Frame 030018/0903 →
Priority Claims (2)
CN 2012 1 0564166 · Dec 21, 2012 · national
CN 2013 1 0081710 · Mar 14, 2013 · national
Continuity (1)
Related Publication 20140178415A1 · Jun 26, 2014