Patent ID: 7314959

Claim:
A compound of Formula II: wherein: A is a member selected from the group consisting of: J is a member selected from the group consisting of a single bond and —CH(Y)—; L is a member selected from the group consisting of —CH 2 X 1 , —SH, and —CHX 2 (X 3 ); X 1 is a member selected from the group consisting of —SH and —R 1 —SH; X 2 and X 3 are each independently a member selected from the group consisting of —H, —SH and —R 1 —SH, provided that at least one of X 2 and X 3 is other than —H or —SH; Y is a member selected from the group consisting of —H, alkyl, and —R 2 -D; D is a member selected from the group consisting of —OH, —SR 3 , and —NR 3 R 4 ; R 3 is a member selected from the group consisting of —H and lower alkyl; R 4 is a member selected from the group consisting of —H, lower alkyl, and —R 5 -D; each Q is independently a member selected from the group consisting of —H, lower alkyl, and —R 6 —SR 3 , provided that when L is —SH, at least one of Q is other than —H; and each R 1 , R 2 , R 5 and R 6 is independently C 1-6 alkylene; and, or a stereoisomer, pharmaceutically-acceptable salt, monoprotonated acid salt or polyprotonated acid salt thereof.