IP Library Granted Patent US 10,183,925
Granted Patent B2
US 10,183,925 · App. 15/561,828 · Granted Jan 22, 2019

Substituted naphtho[2,3-b]furans as water-soluble prodrugs for preventing and/or treating cancer

Inventors: Hitoshi Ban (Osaka, JP); Seiji Kamioka (Osaka, JP); Yusuke Sawayama (Osaka, JP); Chiang Jia Li (Cambridge, MA)
Assignees: BOSTON BIOMEDICAL, INC.; SUMITOMO DAINIPPON PHARMA CO., LTD.
C07D307/92A61P35/00A61P35/02C07D405/12C07D405/14
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Quick Facts
Patent No.
US 10,183,925
App. No.
15/561,828
Granted
Jan 22, 2019
Kind
B2
Abstract

The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A 1 and A 2 are identical or different, and each independently —C(═O) B, —C(═O)CR 3A R 3B B, —CO 2 B, —C(═S)OB, —CONR 3C B, —C(═S)NR 3C B, a hydrogen atom, or the like, wherein A 1 and A 2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R 1 is a hydrogen atom or the like; R 2A , R 2B , R 2C , and R 2D are identical or different, and each independently a hydrogen atom or the like; and R 8 is alkyl. wherein * denotes a bonding position.

Claims (148)

1. A compound represented by formula (1A), or a pharmaceutically acceptable salt, hydrate or solvate thereof:

wherein

A 1 and A 2 are identical or different, and each independently is —C(═O)B, —C(═O)CR 3A R 3B B, —CO 2 B, —C(═S)OB, —CONR 3C B, —C(═S)NR 3C B, —SO 2 B, —SO 2 CR 3A R 3B B, —SO 2 (OB), —SO 2 NR 3C B, —P(═O)(B) 2 , —P(═O)(CR 3A R 3B B) 2 , —P(═O)(OB) 2 , —P(═O)(NR 3C B) 2 , or a hydrogen atom, wherein A 1 and A 2 are not both hydrogen atoms,

wherein

B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B):

wherein

* denotes a bonding position;

X is a single bond, an optionally substituted C 1-10 alkylene, an optionally substituted C 3-10 cycloalkylene, an optionally substituted 3- to 12-membered monocyclic or a polycyclic heterocycle, a 3- to 12-membered cyclic aminyl linker group, a C 2-10 alkenylene, a C 2-10 alkynylene, a C 6-10 arylene, or a C 5-10 heteroarylene;

Y is a single bond, —O—, —OCO—, —OCO 2 —, —OCONR 4A —, —OSO 2 —, —OSO 2 NR 4A —, —CO—, —CO 2 —, —CONR 4A —, —NR 4A —, —NR 4A CO—, —NR 4A CO 2 —, —R 4A CONR 4B —, —NR 4A SO 2 —, —NR 4A SO 2 O—, —NR 4A SO 2 NR 4B —, —S—, —SO—, —SO 2 —, —SO 2 O—, —SO 2 NR 4A —, or a 3- to 12-membered cyclic aminyl linker group;

R 4A and R 4B are identical or different, and each independently is a hydrogen atom, a C 1-10 alkyl group, a C 3-10 cycloalkyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclic group, a C 2-10 alkenyl group, a C 2-10 alkynyl group, a C 6-10 aryl group, or a C 5-10 heteroaryl group;

Z is a single bond, an optionally substituted C 1-10 alkylene, an optionally substituted C 3-10 cycloalkylene, an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocycle, a 3- to 12-membered cyclic aminyl linker group, a C 2-10 alkenylene, a C 2-10 alkynylene, a C 6-10 arylene, or a C 5-10 heteroarylene;

n is 0, 1, or 2;

V is —NHR 5 , an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, or an optionally substituted 3- to 12-membered cyclic amino group, wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; and

R 5 is a hydrogen atom, an optionally substituted C 1-10 alkyl group, a C 3-10 cycloalkyl group, an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, a C 2-10 alkenyl group, a C 2-10 alkynyl group, a C 6-10 aryl group, or a C 5-10 heteroaryl group, and

wherein

the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; and

R 3A , R 3B , and R 3C are identical or different, and each independently is a hydrogen atom, an optionally substituted C 1-10 alkyl group, a C 3-10 cycloalkyl group, an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, a C 2-10 alkenyl group, a C 2-10 alkynyl group, a C 6-10 aryl group, or a C 5-10 heteroaryl group;

R 1 is a hydrogen atom, a halogen atom, a cyano group, a hydroxy group, an amino group, a 3- to 12-membered cyclic amino group, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 2-6 alkenyl group, a C 2-6 alkynyl group, a C 1-6 alkoxy group, a C 6-10 aryl group, a 3- to 12-membered monocyclic or polycyclic heterocyclic group, a C 1-6 alkylcarbonyl group, a C 3-10 cycloalkylcarbonyl group, a C 6-10 arylcarbonyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclylcarbonyl group, a carboxy group, C 1-6 alkoxycarbonyl group, a C 3-10 cycloalkoxycarbonyl group, a C 6-10 aryloxycarbonyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclyloxycarbonyl group, a aminocarbonyl group, a 3- to 12-membered cyclic aminocarbonyl group, a C 1-6 alkylthio group, a C 3-10 cycloalkylthio group, a C 6-10 arylthio group, a 3- to 12-membered monocyclic or polycyclic heterocyclylthio group, a sulfinate group, a C 1-6 alkylsulfinyl group, a C 3-10 cycloalkylsulfinyl group, a C 6-10 arylsulfinyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclylsulfinyl group, a aminosulfinyl group, a 3- to 12-membered cyclic aminosulfinyl group, a sulfonate group, a C 1-6 alkylsulfonyl group, a C 3-10 cycloalkylsulfonyl group, a C 6-10 arylsulfonyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclylsulfonyl group, a aminosulfonyl group, or a 3- to 12-membered cyclic aminosulfonyl group;

R 2A , R 2B , R 2C , and R 2D are identical or different, and each independently is a hydrogen atom, a halogen atom, a cyano group, a hydroxy group, a amino group, a 3- to 12-membered cyclic amino group, a C 1-6 alkyl group, a C 3-10 cycloalkyl group, a C 6-10 aryl group, a 3- to 12-membered monocyclic or polycyclic heterocyclic group, a C 1-6 alkoxy group, a C 3-10 cycloalkoxy group, a C 6-10 aryloxy group, a 3- to 12-membered monocyclic or polycyclic heterocyclyloxy group, a carboxy group, a C 1-6 alkylcarbonyl group, a C 3-10 cycloalkylcarbonyl group, a C 6-10 arylcarbonyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclylcarbonyl group, a C 1-6 alkoxycarbonyl group, a C 3-10 cycloalkoxycarbonyl group, a C 6-10 aryloxycarbonyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclyloxycarbonyl group, an aminocarbonyl group, a 3- to 12-membered cyclic aminocarbonyl group, a C 1-6 alkylthio group, a C 3-10 cycloalkylthio group, a C 6-10 arylthio group, a 3- to 12-membered monocyclic or polycyclic heterocyclylthio group, a sulfinate group, a C 1-6 alkylsulfinyl group, a C 3-10 cycloalkylsulfinyl group, a C 6-10 arylsulfinyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclylsulfinyl group, a aminosulfinyl group, a 3- to 12-membered cyclic aminosulfinyl group, a sulfonate group, a C 1-6 alkylsulfonyl group, a C 3-10 cycloalkylsulfonyl group, a C 6-10 arylsulfonyl group, a 3- to 12-membered monocyclic or polycyclic heterocyclylsulfonyl group, an aminosulfonyl group, or a 3- to 12-membered cyclic aminosulfonyl group; and

R 8 is an optionally substituted C 1-10 alkyl group,

wherein

a substituent of the optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, the optionally substituted 3- to 12-membered cyclic amino group, the optionally substituted C 1-10 alkyl group, the optionally substituted C 1-10 alkylene, and the optionally substituted C 3-10 cycloalkylene, in B, R 3A , R 3B , R 3C , R 5 , R 8 , X, Z, and V is a group optionally substituted with one to five identical or different substituents each independently selected from the group consisting of

(1) a halogen atom,

(9) an optionally substituted C 6-10 aryl group,

(17) —NR 6 R 7 ,

(18) —CO 2 R 6 ,

(20) —CONR 6 R 7 ,

(21) —SO 2 R 6 ,

(22) —SO 2 NR 6 R 7 ,

(24) —OCO 2 R 6 ,

(25) —OCONR 6 R 7 , and

(26) —NR 6 CO 2 R 7

wherein

a substituent in the (9), is a group optionally substituted with one to five identical or different substituents each independently selected from the group consisting of

(a) a halogen atom,

(b) a hydroxy group,

(c) a C 1-6 alkyl group,

(d) a C 1-6 alkoxy group,

(e) a cyano group,

(f) a carboxy group,

(g) a sulfinate group,

(h) a sulfonate group,

(i) a phosphate group,

(i) a C 1-6 alkoxycarbonyl group,

(k) a C 1-6 alkylcarbonyl group,

(l) —NR 6 R 7 ,

(m) —CO 2 R 6

(n) a guanidine group,

(o) —CONR 6 R 7 ,

(p) —SO 2 R 6 ,

(q) —SO 2 NR 6 R 7 ,

(r) a C 6-10 aryl group,

(s) C 5-10 heteroaryl group,

(t) a 3- to 12-membered cyclic amino group optionally substituted with one to three C 1-6 alkyl groups, and

(u) a 3- to 12-membered monocyclic or polycyclic heterocyclic group optionally substituted with one to three C 1-6 alkyl groups, and

R 6 and R 7 are identical or different, and each independently is a hydrogen atom, or a C 1-10 alkyl group optionally substituted with one to two groups selected from the group consisting of a carboxy group, wherein R 6 and R 7 , when both are optionally substituted C 1-10 alkyl groups, may be taken together with the nitrogen atom to which they are attached to form a 3- to 12-membered cyclic amino group.

2. The compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof,

wherein

A 1 and A 2 are identical or different, and each independently is —C(═O)B, —C(═O)CR 3A R 3B B, —CO 2 B, —CONR 3C B, or a hydrogen atom, wherein A 1 and A 2 are not both hydrogen atoms,

wherein

B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B):

wherein

* denotes a bonding position;

X is a single bond, an optionally substituted C 1-10 alkylene, or an optionally substituted C 3-10 cycloalkylene;

Y is a single bond, —O—, or —NR 4A —;

R 4A is a hydrogen atom;

Z is a single bond, or an optionally substituted C 1-10 alkylene;

n is 0, or 1;

V is —NHR 5 , an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, or an optionally substituted 3- to 12-membered cyclic amino group, wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; and

R 5 is a hydrogen atom, or an optionally substituted C 1-10 alkyl group, and

R 3A , R 3B , and R 3C are identical or different, and each independently a hydrogen atom, or an optionally substituted C 1-10 alkyl group;

R 1 , R 2A , R 2B , R 2C , and R 2D are each independently a hydrogen atom; and

R 8 is an optionally substituted C 1-10 alkyl group.

3. The compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein

A 1 and A 2 are —CONHB,

wherein

B is a 3- to 6-membered monocyclic heterocyclic group or a group represented by the formula (B),

wherein

X is C 1-6 alkylene optionally substituted with one to two substituents selected from the group consisting of a carboxy group and —CO 2 R 6 ,

n is 0,

V is —NHR 5 or a 3- to 6-membered monocyclic heterocyclic group, wherein the 3- to 6-membered monocyclic heterocyclic group has at least one or more secondary nitrogen atoms in the ring,

R 5 is a hydrogen atom, or a C 1-6 alkyl group optionally substituted with one to two carboxy groups, and

R 6 is a C 1-6 alkyl group,

wherein

the 3- to 6-membered monocyclic heterocyclic group has at least one or more secondary nitrogen atoms in the ring.

4. The compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein

A 1 and A 2 are identical or different, and each independently is —CO 2 B, —CONR 3C B, or a hydrogen atom, wherein A 1 and A 2 are not both hydrogen atoms.

5. The compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein

A 1 and A 2 are identical or different, and each independently is —CONR 3C B, or a hydrogen atom, wherein A 1 and A 2 are not both hydrogen atoms.

6. The compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof,

wherein

A 1 and A 2 are each independently —CONR 3C B.

7. The compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof,

wherein

R 8 is a methyl group.

8. The compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein V is —NHR 5 .

9. A pharmaceutical composition comprising a compound according to claim 1 , or a pharmaceutically acceptable salt, hydrate or solvate thereof, and a pharmaceutically acceptable carrier.

10. A compound, or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein the compound is selected from the group consisting of:

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((3-aminopropyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-aminoethyl)carbamate),

(2S,2′S)-4,4′-((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(2-(methylamino)butanoic acid),

2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid,

3,3′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))dipropionic acid,

(2S,2′S)-3,3′-((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(2-aminopropionic acid),

dimethyl 4,4′-((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))(2 S,2′S)-bis(2-aminobutanoate),

dimethyl 3,3′-((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))(2 S,2′S)-bis(2-aminopropanoate),

2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(propane-3,1-diyl))bis(azanediyl))diacetic acid,

2,2′-((2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))bis(acetyl))bis(azanediyl))diacetic acid,

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(piperidin-1-ylsulfonyl)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(N,N-dimethyl sulfamoyl)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(isopropylsulfonyl)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((3-((2-(N,N-dimethylsulfamoyl)ethyl)amino)propyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((3-((2-(methylsulfonyl)ethyl)amino)propyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(methylsulfonyl)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(azetidin-1-yl)-2-oxoethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((3-((2-(azetidin-1-yl)-2-oxoethyl)amino)propyl)carbamate),

2,2′-((2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(propane-3,1-diyl))bis(azanediyl))bis(acetyl))bis(azanediyl))diacetic acid,

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(carbamoyloxy)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((3-((2-(carbamoyloxy)ethyl)amino)propyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-((methoxycarbonyl)amino)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((3-((2-((methoxycarbonyl)amino)ethyl)amino)propyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-((methoxycarbonyl)oxy)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((3-((2-((methoxycarbonyl)oxy)ethyl)amino)propyl)carbamate),

2-acetyl-4-hydroxynaphtho[2,3-b]furan-9-yl (3-((2-(N,N-dimethylsulfamoyl)ethyl)amino)propyl)carbamate,

2-acetyl-4-hydroxynaphtho[2,3-b]furan-9-yl (3-((2-(methylsulfonyl)ethyl)amino)propyl)carbamate,

(3-((((2-acetyl-4-hydroxynaphtho[2,3-b]furan-9-yl)oxy)carbonyl)amino)propyl)glycylglycine,

2-acetyl-4-hydroxynaphtho[2,3-b]furan-9-yl (3-((2-(azetidin-1-yl)-2-oxoethyl)amino)propyl)carbamate,

2-acetyl-4-hydroxynaphtho[2,3-b]furan-9-yl (3-((2-(carbamoyloxy)ethyl)amino)propyl)carbamate,

2-acetyl-4-hydroxynaphtho[2,3-b]furan-9-yl (3-((2-((methoxycarbonyl)amino)ethyl)amino)propyl)carbamate, and

2-acetyl-4-hydroxynaphtho[2,3-b]furan-9-yl (3-((2-((methoxycarbonyl)oxy)ethyl)amino)propyl)carbamate.

11. A compound or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein the compound is selected from the group consisting of:

2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid,

3,3′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))dipropionic acid,

dimethyl 4,4′-((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))(2 S,2′S)-bis(2-aminobutanoate),

2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(propane-3,1-diyl))bis(azanediyl))diacetic acid,

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(N,N-dimethyl sulfamoyl)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(isopropylsulfonyl)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(methylsulfonyl)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(azetidin-1-yl)-2-oxoethyl)amino)ethyl)carbamate)),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-(carbamoyloxy)ethyl)amino)ethyl)carbamate),

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-((methoxycarbonyl)amino)ethyl)amino)ethyl)carbamate), and

2-acetylnaphtho[2,3-b]furan-4,9-diyl bis((2-((2-((methoxycarbonyl)oxy)ethyl)amino)ethyl)carbamate).

12. A compound or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein the compound is selected from the group consisting of:

2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid,

3,3′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))dipropionic acid, and

dimethyl 4,4′-((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))(2 S,2′S)-bis(2-aminobutanoate).

13. A compound, or a pharmaceutically acceptable salt, hydrate or solvate thereof, wherein the compound is 2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid.

14. A compound which is 2,2′-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid monohydrochloride dihydrate.

Assignments (5)
CHANGE OF NAME Recorded May 27, 2022
From: SUMITOMO DAINIPPON PHARMA CO., LTD.
To: SUMITOMO PHARMA CO., LTD.
Reel/Frame 060206/0083 →
CHANGE OF NAME Recorded Nov 6, 2020
From: BOSTON BIOMEDICAL, INC.
To: SUMITOMO DAINIPPON PHARMA ONCOLOGY, INC.
Reel/Frame 054349/0213 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 5, 2018
From: BAN, HITOSHI; KAMIOKA, SEIJI; SAWAYAMA, YUSUKE; LI, CHIANG JIA
To: BOSTON BIOMEDICAL, INC.; SUMITOMO DAINIPPON PHARMA CO., LTD.
Reel/Frame 045486/0644 →
CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NUMBER 15561915 SHOULD BE 15561828 PREVIOUSLY RECORDED ON REEL 044443 FRAME 0854. ASSIGNOR(S) HEREBY CONFIRMS THE APPLICATION NUMBER 15561915 SHOULD BE 15561828. Recorded Dec 21, 2017
From: BAN, HITOSHI; KAMIOKA, SEIJI; SAWAYAMA, YUSUKE; LI, CHIANG JIA
To: BOSTON BIOMEDICAL. INC.; SUMITOMO DAINIPPON PHARMA CO.. LTD.
Reel/Frame 044942/0046 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2017
From: BAN, HITOSHI; KAMIOKA, SEIJI; SAWAYAMA, YUSUKE; LI, CHIANG JIA
To: BOSTON BIOMEDICAL, INC.; SUMITOMO DAINPPON PHARMA CO., LTD.
Reel/Frame 044443/0854 →
Continuity (2)
Provisional Application 62139077 · Mar 27, 2015
Related Publication 20180111914A1 · Apr 26, 2018