Patent ID: 7517906

Claim:
A compound of formula (II): or a pharmaceutically acceptable salt thereof, wherein R1 and R2 are independently H, tert-butoxycarbonyl, benzyloxycarbonyl, acetyl, trifluoroacetyl, alkyl, optionally-substituted alkyl, or where R5a and R5b are independently H, alkyl, cycloalkyl, cycloalkylalkyl, aryl, or arylalkyl; or each optionally-substituted with hydroxyl, mercapto, halogen, amino, carboxyl, alkyl, haloalkyl, alkoxy, or alkylthio; R6a and R6b are independently H, tert-butoxycarbonyl, benzyloxycarbonyl, acetyl, trifluoroacetyl, alkyl, lower alkyl, or optionally-substituted alkyl, or where R7a and R7b are independently H, alkyl, cycloalkyl, or haloalkyl; R8a and R8b are independently H, hydroxyl, alkyl, aryl, arylalkyl, cycloalkyl, or cycloalkylalkyl, wherein each alkyl, aryl, arylalkyl, cycloalkyl, or cycloalkylalkyl is optionally-substituted with halogen, hydroxyl, mercapto, carboxyl, alkyl, alkoxy, amino, or nitro; R3a and R3b are independently H, halogen, alkyl, aryl, arylalkyl, amino, arylamino, arylalkylamino, hydroxy, alkyloxy, aryloxy, arylalkylhydroxy, dialkylamino, amido, sulfonamido, or amidino; m and n are 1; X and Y are independently N, or C═C; R9a and R10a are linked by 4 to 8 optionally-substituted atoms such as C, N, O, or S, to form an aromatic ring; R9b and R10b are linked by 4 to 8 optionally-substituted atoms such as C, N, O, or S, to form an aromatic ring; Wa and Wb are a bond, alkylene, alkenylene, alkynylene, aryl, arylalkylene, arylalkylalkylene, or an optionally-substituted alkylene, alkenylene, alkynylene chain of 2 to 12 carbon atoms; and R11a and R11b are independently H, alkyl, optionally-substituted alkyl, hydroxyalkyl, or alkoxyalkyl.