Patent ID: 8461120

Claim:
A compound represented by the formula: wherein A and A′ are each hydrogen or taken together form a double bond, and A″ is H or OH or O-Cladinosyl; or A=Hydrogen and A′ and A″ taken together represent ═O; R 1 , R 2 , R 3 , and R 5 are independently selected from the group consisting of H, alkyl, acyl, allyl, vinyl, SiR′ 3 in which R′ is, independently for each occurrence, alkyl or aryl); or A and A″=Hydrogen and A′ and R 1 together represent a single bond; R 2 , R 3 may be C═O (cyclic carbonate); R 6 ═H, OH, CN, N 3 , NR 8 2 (in which each R 8 is independently H, alkyl or cycloalkyl), alkyl, cycloalkyl, —N(CH 3 )R 8′ (in which R 8′ is H, alkyl, aryl, heteroaryl), or SR 9 (in which R 9 is H, alkyl or cycloalkyl); Q=—N(CH 3 )—CH 2 —; or a pharmaceutically acceptable salt thereof.