IP Library Granted Patent US 7,812,037
Granted Patent B2
US 7,812,037 · App. 11/262,509 · Granted Oct 12, 2010

Dual antiplatelet/anticoagulant pyridoxine analogs

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Quick Facts
Patent No.
US 7,812,037
App. No.
11/262,509
Granted
Oct 12, 2010
Kind
B2
Abstract

Compounds with antiplatelet aggregation and anticoagulant characteristics for the treatment of cardiovascular, cerebrovascular, and cardiovascular related diseases and symptoms, are described. The methods are directed to administering pharmaceutical compositions comprising aryl sulfonic pyridoxine and/or substituted pyridoxine analogs.

Claims (112)

1. A compound of the formula:

wherein

R 1 is —(CR 7 R 8 ) m OH, where m is an integer from 0 to 8, where R 7 is H, halo, alkyl, cycloalkyl, hydroxyl, O-alkyl, or O-alkyl, or O-alkyl-aryl-R 6 , where R 6 is —NO 2 , —NH 2 , amidine, alkyl, cycloalkyl, —CN,

where R 9 is H, OH, or O-alkyl, and where R 8 is H, halo, alkyl, cycloalkyl, hydroxyl, O-alkyl, or O-alkyl-aryl-R 6 , where R 6 is as defined above;

—(CR 7 R 8 ) m O-alkyl, wherein m, R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) m O-aryl-R 6 , where m, R 6 , R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) m O-alkyl-aryl-R 6 , where m and R 6 are as defined above;

—(CR 7 R 8 ) n —NH-aryl-R 6 , where n is an integer from 0 to 8, and where R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH-aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-aryl-R 6 where n, R 6 , R 7 and R 8 are as defined above;

—NH-aryl-R 6 , where R 6 is as defined above;

—(CR 7 R 8 ) n —CO—NH-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above; or

—(CR 7 R 8 ) n —CO—NH-aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

R 2 is hydroxyl;

halo;

alkyl;

—(CR 7 R 8 ) m —X, where m, R 7 and R 8 are as defined above, where X is OH, F, Cl or Br;

—(CH 2 ) n COOH, where n is as defined above;

—(CR 7 R 8 ) m COO(CR 7 R 8 ) n CH 3 , where m, n, R 7 and R 8 are as defined above;

—(CR 7 R 8 ) m NH(CR 7 R 8 ) n COOH, where m, n, R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n -aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n -aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) m —CHF 2 , where m, R 7 and R 8 are defined as above;

—(CR 7 R 8 ) n —NH-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH-aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-aryl-R 6 where n, R 6 , R 7 and R 8 are as defined above;

NH-aryl-R 6 , where R 6 is as defined above;

—(CR 7 R 8 ) n —CO—NH-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above; or

—(CR 7 R 8 ) n —CO—NH-aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

R 3 is —(CR 7 R 8 ) m OH, where m, R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) m O-alkyl, where m, R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) m O-aryl-R 6 , where m, R 6 , R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) m O-alkyl-aryl-R 6 , where m and R 6 is as defined above;

—(CR 7 R 8 ) n OH, where n, R 6 , R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) n —NH-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH-aryl-aryl-R 9 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—NH-aryl-R 6 , where R 6 is as defined above;

—(CR 7 R 8 ) n —CO—NH-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above; or

—(CR 7 R 8 ) n —CO—NH-aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

R 4 is H, aryl, cycloalkyl, arylalkyl, CHF 2 , CHO, or R 2 ;

R 5 is H, aryl, cycloalkyl, arylalkyl, CHF 2 , CHO, or R 2 ;

wherein aryl is phenyl or naphthyl; and

at least two of R 1 , R 2 , R 3 , R 4 , and R 5 have amidine groups;

or a pharmaceutically acceptable salt thereof.

2. A pharmaceutical composition comprising a therapeutically effective amount of at least one compound of claim 1 and a pharmaceutically acceptable carrier.

3. A compound of the formula

wherein

R 1 is hydroxyl; O-alkyl; or

where R 6 is —NO 2 , —NH 2 , amidine, alkyl, cycloalkyl, —CN,

where R 9 is H, OH, or O-alkyl;

R 2 is CH 2 OH;

CH 2 OCH 3 ;

COOZ, where Z is OH, OCH 3 , OCH 2 CH 3 , or

 where R 6 is defined above;

CH 2 OBn;

CH 3 ;

CH 2 F;

CHF 2 ;

CH 2 —NH—(CH 2 ) m —CO 2 Z, where m′=0, 1, 2, 3, 4, or 5, and where Z is as defined above; or

(CH 2 ) n′ —CO 2 Z, where n′=1, 2 or 3, and where Z is as defined above;

A is O or NH;

W is C═O or (CH 2 ) n′ , where n′ is as defined above;

E is C═O; (CH 2 ) n′ , where n′ is as defined above; or CHR 10 , where R 10 is CH 2 COZ, where Z is as defined above;

Y is C—H, C—F, C—OCH 3 , C—OCF 3 , or C—CF 3 ;

R 4 is H;

halo;

aryl;

cycloalkyl;

arylalkyl;

CHF 2 ;

CHO;

alkyl;

—(CR 7 R 8 ) m —X, where m is an integer from 0 to 8, where R 7 is H, F, alkyl, cycloalkyl, hydroxyl, O-alkyl, or O-alkyl-aryl-R 6 , where R 8 is H, F, alkyl, cycloalkyl, hydroxyl, O-alkyl, or O-alkyl-aryl-R 6 , where R 6 is as defined above, and where X is OH, F, or Br;

—(CH 2 ) n COOH, where n is an integer from 0 to 8;

—(CR 7 R 8 ) m COO(CR 7 R 8 ) n CH 3 , where m, n, R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) m NH(CR 7 R 8 ) n COOH, where m, n, R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) n -aryl-R 6 , where n, R 6 , R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) n -aryl-aryl-R 6 , where n, R 6 , R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) n —CHF 2 , where n, R 7 and R 8 are defined as above;

—(CR 7 R 8 ) n —NH-aryl-R 6 , where n, R 6 , R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-R 6 , where n, R 6 , R 7 , and R 8 are as defined above;

—(CR 7 R 8 ) n —NH-aryl-aryl-R 6 , where n, R 6 , R 7 and R 8 are as defined above;

—(CR 7 R 8 ) n —NH—CO-aryl-aryl-R 6 , where n, R 6 , R 7 , and R 8 are as defined above;

NH-aryl-R 6 where R 6 is as defined above;

—(CR 7 R 8 ) n —CO—NH-aryl-R 6 , where n, R 6 , R 7 , and R 8 are as defined above; or

—(CR 7 R 8 ) n —CO—NH-aryl-aryl-R 6 , where n, R 6 , R 7 , and R 8 are as defined above;

R 5 is H, aryl, cycloalkyl, arylalkyl, CHF 2 , CHO, or R 4 , where R 4 is as defined above; and

at least two of R 1 , R 4 , R 5 , and R 6 have amidine groups;

or a pharmaceutically acceptable salt thereof.

4. The compound of claim 3 , wherein the compound is 4-{4-fluoromethyl-2-methyl-5-[(4-carbamimidoyl-benzyloxy)-methyl]-pyridin-3-yloxymethyl}-benzamidine.

5. The compound of claim 3 , wherein the compound is 4-{[5-(4-carbamimidoyl-benzyloxy)-4,6-dimethyl-pyridin-3-ylmethyl]-amino}-benzamidine.

6. The compound of claim 3 , wherein the compound is 4-{[5-(3-carbamimidoyl-benzyloxy)-4,6-dimethyl-pyridin-3-ylmethyl]-amino}-benzamidine.

7. The compound of claim 3 , wherein the compound is 3-[3-(4-carbamimidoyl-benzyloxy)-5-(4-carbamimidoyl-phenoxymethyl)-2-methyl-pyridin-4-yl]-propionic acid ethyl ester.

8. The compound of claim 3 , wherein the compound is 6-({3-(4-carbamimidoyl-benzyloxy)-5-[(4-carbamimidoyl-phenylamino)-methyl]-2-methyl-pyridin-4-ylmethyl}-amino)-hexanoic acid.

9. The compound of claim 3 , wherein the compound is 6-({3-(4-carbamimidoyl-benzyloxy)-5-[(4′-carbamimidoyl-biphenyl-4-ylamino)-methyl]-2-methyl-pyridin-4-ylmethyl}-amino) hexanoic acid.

10. The compound of claim 3 , wherein the compound is 4-{[4,6-Bis-fluoromethyl-5-(3-amidine-benzyloxy)-pyridin-3-ylmethyl]-amino}-benzamidine.

11. The compound of claim 3 , wherein the compound is 4-{5-[(4-Carbamimidoyl-phenylamino)-methyl]-2,4-bis-fluoromethyl-pyridin-3-yloxymethyl}-benzamidine.

12. The compound of claim 3 , wherein the compound is 4-{[5-(3-Amidine-benzyloxy)-6-fluoro-methyl-4-methyl-pyridin-3-ylmethyl]-amino}-benzamidine.

13. The compound of claim 3 , wherein the compound is 4-{[4-Fluoromethyl-5-(3-amidine-benzyloxy)-6-methyl-pyridin-3-ylmethyl]-amino}-benzamidine.

14. The compound of claim 3 , wherein the compound is 4-{5-[(4-Carbamimidoyl-phenylamino)-methyl]-6-cyclopropyl-4-hydroxymethyl-2-methyl-pyridin-3-yloxymethyl}-benzamidine.

15. The compound of claim 3 , wherein the compound is 4-{[5-(3-Amidine-benzyloxy)-6-hydroxymethyl-4-methyl-pyridin-3-ylmethyl]-amino}-benzamidine.

16. The compound of claim 3 , wherein the compound is 3-{5-[(4-Carbamimidoyl-phenylamino)-methyl]-6-cyclopropyl-4-hydroxymethyl-2-methyl-pyridin-3-yloxymethyl}-benzamidine.

17. The compound of claim 3 , wherein the compound is 3-{5-[(4-Amidino-phenylamino)-methyl]-4-ethyl-2-methyl-pyridin-3-yloxymethyl}-benzamidine.

18. The compound of claim 3 , wherein the compound is 4-{5-[(3-amidino-phenylamino)-methyl]-2,4-dimethyl-pyridin-3-yloxy}benzamidine.

19. The compound of claim 3 , wherein the compound is 4-{[5-(3-Amidine-benzyloxy)-6-formyl-4-methyl-pyridin-3-ylmethyl]-amino}-benzamidine.

20. The compound of claim 3 , wherein the compound is 4-{[4,6-Dimethyl-5-(3-hydroxyamidine-benzyloxy)-pyridin-3-ylmethyl]-amino-}-N-hydroxybenzamidine.

21. The compound of claim 3 , wherein the compound is 4-{[5(3-Methoxyamidine-benzyloxy)-4,6-dimethyl-pyridin-3-ylmethyl]-amino}-N-methoxybenzamidine hydrochloride.

22. The compound of claim 3 , wherein the compound is 4-{[5(3-Ethoxy-amidine-benzyloxy)-4,6-dimethyl-pyridin-3-ylmethyl]-amino}-N-ethoxybenzamidine hydrochloride.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Dec 5, 2008
From: GE CANADA ASSET FINANCE HOLDING COMPANY, SUCCESSOR AS AGENT TO MERRILL LYNCH CAPITAL CANADA INC.
To: MEDICURE INTERNATIONAL INC.
Reel/Frame 021924/0586 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2007
From: HAQUE, WASIM; DIAKUR, JAMES; PHAM, VINH; REHMAN, ATIQ; WHITNEY, TARA; OMAR, MOHAMMED; YI, SENG; KHAN, A. QASIM
To: MEDICURE INTERNATIONAL INC.
Reel/Frame 020203/0360 →
SECURITY AGREEMENT Recorded Aug 15, 2006
From: MEDICURE INTERNATIONAL INC.
To: MERRILL LYNCH CAPITAL CANADA INC.
Reel/Frame 018109/0041 →