Patent ID: 8106034

Claim:
A compound having the general formula: wherein R is Y is —(CR 1 R 20 ) 1-7 R 5 , or —C(O)(CR 1 R 20 ) 1-7 R 5 ; R 1 and R 20 are independently selected from the group consisting of hydrogen or C 1-4 alkyl; R 5 is —O—N═N(O)—NR 3 R 4 ; R 3 and R 4 together with the nitrogen atom to which they are attached, form a ring selected from the group consisting of Q is selected from the group consisting of S, O and NR 6 ; R 6 , R 8 and R 9 are independently selected from the group consisting of hydrogen and unsubstituted or substituted C 1-6 alkyl; R 12 and R 13 are independently selected from the group consisting of —OH, —CH 2 OH, —CH 2 CH 2 OH, —COOH, and —CH 2 COOH; or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable salt of the stereoisomer thereof.