Patent ID: 8003811

Claim:
A compound of the formula (I) and pharmaceutically acceptable salts or stereoisomers thereof: wherein A and A′ are independently selected from the group consisting of H and —(X) s —Y with the proviso that at least one of A or A′ is not H and at least one of A or A′ is H; wherein s is 0 or 1; X is selected from the group consisting of: —CO—, —COO—, —CONH— and —SO 2 — or Y is selected from the group consisting of: 1) Z—CH 2 —ONO 2 , wherein Z is a straight or branched C 1 -C 10 alkylene; 2) (CH 2 ) n R 1 , 3) (CH 2 ) n —O—CH 2 —R 1 , wherein R 1 is —CH(ONO 2 )R 2 ; R 2 is —CH 3 or C 1-4 alkyl; n is an integer from 1 to 6; 4) Y 1 —R 3 , wherein R 3 is —CH(ONO 2 )CH(ONO 2 )R 4 ; R 4 is selected from —CH 3 , —CH 2 CH 3 and —CH(CH 3 ) 2 ; Y 1 is —(CH 2 ) 1-4 —(X 1 ) 0-1 —(CH 2 ) 0-4 , wherein X 1 is —O— or —CR 5 R 6 —; and R 5 and R 6 are independently selected from the group consisting of hydrogen and C 1 -C 4 alkyl; and 5) Y 1 —CH(ONO 2 )CH 2 (ONO 2 ) wherein Y 1 is as above defined, with the proviso that when s is 0, then Y 1 is not —CH 2 —.