IP Library › Granted Patent US 11,028,083

Granted Patent B2

US 11,028,083 · App. 16/290,675 · Granted Jun 8, 2021

Ethanediamine-heterocycle derivatives as inhibitors of protein arginine methyltransferases

Inventors: Maria Emilia Di Francesco (Houston, TX); Philip Jones (Houston, TX); Timothy Joseph McAfoos (Houston, TX)

Assignee: Board of Regents, The University of Texas System

C07D471/04 A61P3/00 A61P35/02 C07D487/04 C07D498/04 A61K45/06

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Quick Facts

Patent No.: US 11,028,083
App. No.: 16/290,675
Granted: Jun 8, 2021
Kind: B2

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Abstract

The present invention relates to ethanediamine-heterocycle compounds that are able to act as inhibitors of PRMTs (protein arginine methyltransferases) for treating cancer and other diseases mediated by PRMTs.

Claims (145)

1. A compound of structural Formula I

or a salt thereof, wherein:

A is a monocyclic heterocycloalkyl ring comprising 5 to 7 ring members including:

X 1 and X 2 ,

Z, which is chosen from —CH 2 —, —CHR 3 —, —C(R 3 ) 2 —, —N(R 5a )—, N(COR 5a )—,

N(CONR 5a R 5b )—, N(SO 2 R 5a )—, —O—, and —SO 2 —, and

all other ring members Y, which are chosen from —CH 2 —, —CHR 2 —, and —C(R 2 ) 2 —;

R 1a , R 1b , and R 1c are independently chosen from H and CH 3 ;

either X 1 is C and X 2 is N, or X 1 is N and X 2 is C;

each R 2 and R 3 is independently chosen from cyano, halo, hydroxy, C 1-6 alkyl,

C 1-6 haloalkyl, C 1-6 hydroxyalkyl, (C 1-6 alkoxy)C 1-6 alkyl; OR 5a , C(O)R 5a , C(O)OR 5a , C(O)NR 5a R 5b , SO 2 R 5a ; SO 2 NR 5a R 5b , NR 5a R 5b , NR 5a C(O)R 5b , NR 5c C(O)OR 5b , NR 5c C(O)NR 5a R 5b , and NR 5a SO 2 R 5b , or

any two R 2 or R 3 , when directly attached to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

R 4 is chosen from cycloalkyl, heterocycloalkyl, aryl and heteroaryl, any of which is optionally substituted with 1, 2, 3, or 4 R 6 groups;

each R 5a and R 5b is independently chosen from H, C 1-6 alkyl, cyanoC 1-6 alkyl, haloC 1-6 alkyl, hydroxyC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl; C 3-6 cycloalkyl, cyanoC 3-6 cycloalkyl, haloC 3-6 cycloalkyl, hydroxyC 3-6 cycloalkyl, and (C 3-6 alkoxy)C 3-6 cycloalkyl, or

R 5a and R 5b , when directly attached to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

R 5c is chosen from H, C 1-6 alkyl, cyanoC 1-6 alkyl, haloC 1-6 alkyl, hydroxyC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl; C 3-6 cycloalkyl, cyanoC 3-6 cycloalkyl, haloC 3-6 cycloalkyl, hydroxyC 3-6 cycloalkyl, and (C 3-6 alkoxy)C 3-6 cycloalkyl;

each R 6 is independently chosen from C 1-6 alkyl, cyanoC 1-6 alkyl, haloC 1-6 alkyl, hydroxyC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, (haloC 1-6 alkoxy)C 1-6 alkyl, C 3-6 cycloalkyl, cyanoC 3-6 cycloalkyl, haloC 3-6 cycloalkyl, hydroxyC 3-6 cycloalkyl, (C 3-6 alkoxy)C 3-6 cycloalkyl, (C 3-6 cycloalkyl)C 1-6 alkyl, (heterocycloalkyl)C 1-6 alkyl, (aryl)C 1-6 alkyl, (heteroaryl)C 1-6 alkyl, ((C 1-6 alkyl)aryl)C 1-6 alkyl, ((C 1-6 alkyl)heteroaryl)C 1-6 alkyl, OR 7 , CH 2 OR 7 , CH 2 CH 2 OR 7 , COR 7 , COOH, COOR 7 , CONH 2 , CONHR 7 , CON(R 7 ) 2 , NHCOR 7 , NR 7 COR 7 , NHCONH 2 , NHCONHR 7 , NHCON(R 7 ) 2 , NR 7 CONH 2 , NR 7 CONHR 7 , NR 7 CON(R 7 ) 2 , SO 2 R 7 , SO 2 NHR 7 , SO 2 N(R 7 ) 2 , NHSO 2 R 7 , NR 7 SO 2 R 7 , carboxy, cyano, halo, hydroxy, and oxo;

each R 7 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, aryl, heteroaryl, C 3-6 cycloalkyl, heterocycloalkyl, (aryl)C 1-6 alkyl, (heteroaryl)C 1-6 alkyl, (cycloalkyl)C 1-6 alkyl, and (heterocycloalkyl)C 1-6 alkyl, any of which is optionally substituted with 1 or 2 R 8 groups; and

each R 8 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, C 3-6 cycloalkyl, and haloC 3-6 cycloalkyl.

2. The compound as recited in claim 1 , or a salt thereof, wherein A comprises 5 or 6 ring members.

3. The compound as recited in claim 2 , or a salt thereof, wherein each Y is —CH 2 —.

4. The compound as recited in claim 3 , or a salt thereof, wherein Z is chosen from —CH 2 —, —CHOH—, —CH(CF 3 ), —C(CH 3 ) 2 —,

—N(R 5a )—, —N(COR 5a )—, —CH(CH 2 OH)—, —CF 2 —, and —O—.

5. The compound as recited in claim 4 , or a salt thereof, wherein Z is chosen from —CH 2 —, —C(CH 3 ) 2 —,

—CF 2 —, and —O—.

6. The compound as recited in claim 5 , or a salt thereof, wherein R 4 is chosen from cycloalkyl and heterocycloalkyl, either of which is optionally substituted with 1, 2, or 3 R 6 groups.

7. The compound as recited in claim 6 , or a salt thereof, wherein at least one of R 1b and R 1c is H.

8. The compound as recited in claim 7 , or a salt thereof, wherein each R 6 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, (aryl)C 1-6 alkyl, COR 7 , COOR 7 , CONHR 7 , CON(R 7 ) 2 , NHCOR 7 , SO 2 R 7 , NHSO 2 R 7 , halo, hydroxy, and oxo.

9. The compound as recited in claim 8 , or a salt thereof, wherein each R 7 is independently chosen from C 1-6 alkylo, C 3-6 cycloalkyl, (aryl)C 1-6 alkyl, and (heteroaryl)C 1-6 alkyl, any of which is optionally substituted with 1 or 2 R 8 groups.

10. The compound as recited in claim 9 , or a salt thereof, wherein X 1 is N and X 2 is C.

11. The compound as recited in claim 1 , having structural Formula II

or a salt thereof, wherein:

A is a monocyclic heterocycloalkyl ring comprising 5 to 7 ring members including:

X 1 and X 2 ,

Z, which is chosen from —CH 2 —, —CHR 3 —, —C(R 3 ) 2 —, —N(R 5a )—, N(COR 5a )—,

N(CONR 5a R 5b )—, N(SO 2 R 5a )—, —O—, and —SO 2 —, and

all other ring members Y, which are chosen from —CH 2 —, —CHR 2 —, and —C(R 2 ) 2 —;

R 1a , R 1b , and R 1c are independently chosen from H and CH 3 ;

either X 1 is C and X 2 is N, or X 1 is N and X 2 is C;

each R 2 and R 3 is independently chosen from cyano, halo, hydroxy, C 1-6 alkyl,

any two R 2 or R 3 , when directly attached to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

R 4a and R 4b , together with the atom to which they are attached, form a cycloalkyl or heterocycloalkyl ring, which is optionally substituted with 1, 2, or 3 R 6 groups;

R 5a and R 5b , when attached directly to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

each R 8 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, C 3-6 cycloalkyl, and haloC 3-6 cycloalkyl.

12. The compound as recited in claim 11 , or a salt thereof, wherein A comprises 5 or 6 ring members.

13. The compound as recited in claim 12 , or a salt thereof, wherein each R 6 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, (haloC 1-6 alkoxy)C 1-6 alkyl, (C 3-6 cycloalkyl)C 1-6 alkyl, (3-6 membered heterocycloalkyl)C 1-6 alkyl, (aryl)C 1-6 alkyl, (heteroaryl)C 1-6 alkyl, ((C 1-6 alkyl)aryl)C 1-6 alkyl, and ((C 1-6 alkyl)heteroaryl)C 1-6 alkyl.

14. The compound as recited in claim 13 , or a salt thereof, wherein:

Z is chosen from —CH 2 —, —C(CH 3 ) 2 —,

—CF 2 —, and —O—; and

each Y is —CH 2 —.

15. The compound as recited in claim 14 , or a salt thereof, wherein Z is chosen from —CH 2 —, —C(CH 3 ) 2 —,

—CF 2 —, and —O—.

16. The compound as recited in claim 15 , or a salt thereof, wherein X 1 is N and X 2 is C.

17. The compound as recited in claim 16 , or a salt thereof, wherein:

each R 3 is independently chosen from cyano, fluoro, hydroxy, C 1-6 alkyl, C 1-6 fluoroalkyl, and C 1-6 hydroxyalkyl, or

any two R 3 , when directly attached to the same atom, forms a 3-7 membered cycloalkyl ring.

18. The compound as recited in claim 17 , or a salt thereof, wherein R 4a and R 4b , together with the atom to which they are attached, form a ring chosen from oxetane, tetrahydrofuran, oxane, azetidine, pyrrolidine, and piperidine, any of which is optionally substituted with 1 or 2 R 6 groups.

19. The compound as recited in claim 17 , or a salt thereof, wherein R 4a and R 4b , together with the atom to which they are attached, form a ring chosen from cyclopentane and cyclohexane, either of which is optionally substituted with 1 or 2 R 6 groups.

20. The compound as recited in claim 17 , or a salt thereof, wherein R 4a and R 4b , together with the atom to which they are attached, form a lactam ring, which is optionally substituted with 1 or 2 R 6 groups.

21. The compound as recited in claim 1 , having structural Formula IIb:

or a salt thereof, wherein:

A is a monocyclic heterocycloalkyl ring comprising 5 to 7 ring members including:

X 1 and X 2 ,

Z, which is chosen from —CH 2 —, —CHR 3 —, —C(R 3 ) 2 —, —N(R 5a )—, N(COR 5a )—,

N(CONR 5a R 5b )—, N(SO 2 R 5a )—, —O—, and —SO 2 —, and all other ring members Y, which are chosen from —CH 2 —, —CHR 2 —, and —C(R 2 ) 2 —;

R 1a , R 1b , and R 1c are independently chosen from H and CH 3 ;

each R 2 and R 3 is independently chosen from cyano, halo, hydroxy, C 1-6 alkyl,

C 1-6 haloalkyl, C 1-6 hydroxyalkyl, (C 1-6 alkoxy)C 1-6 alkyl; OR 5a , C(O)R 5a , C(O)OR 5a , C(O)NR 5a R 5b , SO 2 R 5a ; SO 2 NR 5a R 5b , NR 5a R 5b , NR 5a C(O)R 5b , NR 5C C(O)OR 5b , NR 5c C(O)NR 5a R 5b , and NR 5a SO 2 R 5b , or

any two R 2 or R 3 , when directly attached to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

B is chosen from:

each R 4c is independently chosen from —CH 2 —, —CH(R 6d )—, and —C(R 6d ) 2 —;

R 6d is chosen from C 1-6 alkyl, C 1-6 alkoxy, and (C 1-6 alkoxy)C 1-6 alkyl;

each R 8 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, C 3-6 cycloalkyl, and haloC 3-6 cycloalkyl.

22. The compound as recited in claim 21 , or a salt thereof, wherein B is chosen from:

23. The compound as recited in claim 1 , having structural Formula III:

or a salt thereof, wherein

A is a monocyclic heterocycloalkyl ring comprising 5 or 6 ring members including:

X 1 and X 2 ,

Z, which is chosen from —CH 2 —, —CHR 3 —, —C(R 3 ) 2 —, —N(R 5a )—, N(COR 5a )—,

N(CONR 5a R 5b )—, N(SO 2 R 5a )—, —O—, and —SO 2 —, and

all other ring members Y, which are chosen from —CH 2 —, —CHR 2 —, and —C(R 2 ) 2 —;

R 1a , R 1b , and R 1c are independently chosen from H and CH 3 ;

either X 1 is C and X 2 is N, or X 1 is N and X 2 is C;

W is C(R 6b );

each R 2 and R 3 is independently chosen from cyano, halo, hydroxy, C 1-6 alkyl, C 1-6 haloalkyl, C 1-6 hydroxyalkyl, (C 1-6 alkoxy)C 1-6 alkyl; OR 5a , C(O)R 5a , C(O)OR 5a , C(O)NR 5a R 5b , SO 2 R 5a ; SO 2 NR 5a R 5b , NR 5a R 5b , NR 5a C(O)R 5b , NR 5c C(O)OR 5b , NR 5c C(O)NR 5a R 5b , and NR 5a SO 2 R 5b , or

any two R 2 or R 3 , when directly attached to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

R 5a and R 5b , when attached directly to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

R 6a and R 6b are independently chosen from H, C 1-6 alkyl, cyanoC 1-6 alkyl, haloC 1-6 alkyl, hydroxyC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, (haloC 1-6 alkoxy)C 1-6 alkyl, C 3-6 cycloalkyl, cyanoC 3-6 cycloalkyl, haloC 3-6 cycloalkyl, hydroxyC 3-6 cycloalkyl, (C 3-6 alkoxy)C 3-6 cycloalkyl, (C 3-6 cycloalkyl)C 1-6 alkyl, (C 3-6 heterocycloalkyl)C 1-6 alkyl, (aryl)C 1-6 alkyl, (heteroaryl)C 1-6 alkyl, ((C 1-6 alkyl)aryl)C 1-6 alkyl, ((C 1-6 alkyl)heteroaryl)C 1-6 alkyl, OR 7 , CH 2 OR 7 , CH 2 CH 2 OR 7 , COR 7 , COOH, COOR 7 , CONH 2 , CONHR 7 , CON(R 7 ) 2 , NHCOR 7 , NR 7 COR 7 , NHCONH 2 , NHCONHR 7 , NHCON(R 7 ) 2 , NR 7 CONH 2 , NR 7 CONHR 7 , NR 7 CON(R 7 ) 2 , SO 2 R 7 , SO 2 NHR 7 , SO 2 N(R 7 ) 2 , NHSO 2 R 7 , NR 7 SO 2 R 7 , carboxy, cyano, halo, hydroxy, and oxo;

each R 7 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, aryl, heteroaryl, C 3-6 cycloalkyl, C 3-6 heterocycloalkyl, (aryl)C 1-6 alkyl, (heteroaryl)C 1-6 alkyl, (cycloalkyl)C 1-6 alkyl, and (heterocycloalkyl)C 1-6 alkyl, any of which is optionally substituted with 1 or 2 R 8 groups;

each R 8 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, C 3-6 cycloalkyl, and haloC 3-6 cycloalkyl; and

p is chosen from 1 and 2.

24. The compound as recited in claim 23 , or a salt thereof, wherein R 6a and R 6b are independently chosen from H, C 1-6 alkyl, haloC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, (haloC 1-6 alkoxy)C 1-6 alkyl, C 3-6 cycloalkyl, (C 3-6 alkoxy)C 3-6 cycloalkyl, OR 7 , COR 7 , COOH, COOR 7 , CONH 2 , CONHR 7 , CON(R 7 ) 2 , HCOR 7 , NHCONHR 7 , NHCON(R 7 ) 2 , SO 2 R 7 , SO 2 NHR 7 , SO 2 N(R 7 ) 2 , NHSO 2 R 7 , cyano, halo, hydroxy, and oxo.

25. The compound as recited in claim 24 , or a salt thereof, wherein:

R 6a and R 6b are independently chosen from H, C 1-6 alkyl, haloC 1-6 alkyl, (C 1-6 alkoxy)-C 1-6 alkyl, (haloC 1-6 alkoxy)C 1-6 alkyl, OR 7 , COR 7 , COOR 7 , CONH 2 , CONHR 7 , CON(R 7 ) 2 , SO 2 R 7 , SO 2 NHR 7 , SO 2 N(R 7 ) 2 , NHSO 2 R 7 , cyano, halo, hydroxy, and oxo; and

each R 7 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, C 3-6 cycloalkyl, and C 3-6 heterocycloalkyl.

26. The compound as recited in claim 25 , or a salt thereof, wherein:

Z is chosen from —CH 2 —, —C(CH 3 ) 2 —,

—CF 2 —, and —O—;

p is 2; and

each Y is —CH 2 —.

27. The compound as recited in claim 26 , or a salt thereof, wherein Z is chosen from —CH 2 —, —C(CH 3 ) 2 —,

—CF 2 —, and —O—.

28. The compound as recited in claim 27 , or a salt thereof, wherein:

each R 3 is independently chosen from cyano, fluoro, hydroxy, C 1-6 alkyl, C 1-6 fluoroalkyl, and C 1-6 hydroxyalkyl, or

any two R 3 , when directly attached to the same atom, forms a 3-7 membered cycloalkyl ring.

29. The compound as recited in claim 28 , or a salt thereof, wherein:

R 6a and R 6b are independently chosen from H, C 1-6 alkyl, fluoroC 1-6 alkyl, (C 1-6 alkoxy)-C 1-6 alkyl, (fluoroC 1-6 alkoxy)C 1-6 alkyl, C 3-6 cycloalkyl, (C 3-6 alkoxy)C 3-6 cycloalkyl, OR 7 , COR 7 , COOH, and COOR 7 ; and

each R 7 is independently chosen from C 1-6 alkyl and fluoroC 1-6 alkyl.

30. The compound as recited in claim 29 , or a salt thereof, wherein R 6a and R 6b are independently chosen from C 1-6 alkyl, fluoroC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, (fluoroC 1-6 alkoxy)C 1-6 alkyl, and OR 7 .

31. The compound as recited in claim 30 , or a salt thereof, wherein at least one of R 6a and R 6b is chosen from C 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, and (fluoroC 1-6 alkoxy)C 1-6 alkyl.

32. The compound as recited in claim 31 , or a salt thereof, wherein at least one of R 6a and R 6b is chosen from C 1-6 alkoxymethyl, C 1-6 alkoxyethyl, and fluoroC 1-6 alkoxy-ethyl.

33. The compound as recited in claim 1 , having structural Formula IV:

or a salt thereof, wherein:

A is a monocyclic heterocycloalkyl ring comprising 5 to 7 ring members including:

X 1 and X 2 ,

Z, which is chosen from —CH 2 —, —CHR 3 —, —C(R 3 ) 2 —, —N(R 5a )—, N(COR 5a )—,

N(CONR 5a R 5b )—, N(SO 2 R 5a )—, —O—, and —SO 2 —, and

all other ring members Y, which are chosen from —CH 2 —, —CHR 2 —, and —C(R 2 ) 2 —;

R 1a , R 1b , and R 1c are independently chosen from H and CH 3 ;

either X 1 is C and X 2 is N, or X 1 is N and X 2 is C;

each R 2 and R 3 is independently chosen from cyano, halo, hydroxy, C 1-6 alkyl,

any two R 2 or R 3 , when directly attached to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

R 5a and R 5b , when attached directly to the same atom, forms a 3-7 membered cycloalkyl or heterocycloalkyl ring;

R 6a and R 6b are independently chosen from H, C 1-6 alkyl, cyanoC 1-6 alkyl, haloC 1-6 alkyl, hydroxyC 1-6 alkyl, (C 1-6 alkoxy)C 1-6 alkyl, (haloC 1-6 alkoxy)C 1-6 alkyl, C 3-6 cycloalkyl, cyanoC 3-6 cycloalkyl, haloC 3-6 cycloalkyl, hydroxyC 3-6 cycloalkyl, (C 3-6 alkoxy)-C 3-6 cycloalkyl, (C 3-6 cycloalkyl)C 1-6 alkyl, (3-6 membered heterocycloalkyl)C 1-6 alkyl, (aryl)C 1-6 alkyl, (heteroaryl)C 1-6 alkyl, ((C 1-6 alkyl)aryl)C 1-6 alkyl, ((C 1-6 alkyl)-heteroaryl)C 1-6 alkyl, OR 7 , CH 2 OR 7 , CH 2 CH 2 OR 7 , COR 7 , COOH, COOR 7 , CONH 2 , CONHR 7 , CON(R 7 ) 2 , NHCOR 7 , NR 7 COR 7 , NHCONH 2 , NHCONHR 7 , NHCON(R 7 ) 2 , NR 7 CONH 2 , NR 7 CONHR 7 , NR 7 CON(R 7 ) 2 , SO 2 R 7 , SO 2 NHR 7 , SO 2 N(R 7 ) 2 , NHSO 2 R 7 , NR 7 SO 2 R 7 , carboxy, cyano, halo, hydroxy, and oxo;

each R 7 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, aryl, heteroaryl, C 3-6 cycloalkyl, 3-6 membered heterocycloalkyl, (aryl)C 1-6 alkyl, (heteroaryl)C 1-6 alkyl, (cycloalkyl)C 1-6 alkyl, and (heterocycloalkyl)C 1-6 alkyl, any of which is optionally substituted with 1 or 2 R 8 groups; and

each R 8 is independently chosen from C 1-6 alkyl, haloC 1-6 alkyl, C 3-6 cycloalkyl, and haloC 3-6 cycloalkyl.

34. The compound as recited in claim 33 , or a salt thereof, wherein:

each R 2 and R 3 is independently chosen from cyano, halo, hydroxy, C 1-6 alkyl, C 1-6 haloalkyl, C 1-6 hydroxyalkyl, (C 1-6 alkoxy)C 1-6 alkyl, or

any two R 2 or R 3 , when directly attached to the same atom, forms a 3-6 membered cycloalkyl ring; and

R 6a and R 6b are chosen from H, C 1-6 alkyl, C 1-6 alkoxy, (C 1-6 alkoxy)C 1-6 alkyl, and (fluoroC 1-6 alkoxy)C 1-6 alkyl.

35. A compound chosen from:

36. A pharmaceutical composition comprising a compound as recited in claim 1 or a salt thereof, together with a pharmaceutically acceptable carrier.

Assignments (2)

CONFIRMATORY LICENSE Recorded Dec 13, 2022

From: UNIVERSITY OF TX MD ANDERSON CAN CTR

To: UNITED STATES GOVERNMENT

Reel/Frame 062205/0088 →

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 11, 2019

From: DI FRANCESCO, MARIA EMILIA; JONES, PHILIP; MCAFOOS, TIMOTHY JOSEPH

To: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Reel/Frame 048865/0467 →

Continuity (2)

Provisional Application 62637147 · Mar 1, 2018

Related Publication 20190270739A1 · Sep 5, 2019