Patent ID: 7981926

Claim:
A taxoid compound represented by the formula: wherein: R 1 represents an alkyl, alkenyl, alkylamino, dialkylamino, or alkoxy group having one to six carbon atoms; a non-aromatic carbocyclic alkyl or alkenyl group having three to seventeen ring carbon atoms; a carbocyclic aryl group having six to eighteen ring carbon atoms; a non-aromatic heterocyclic group having three to seventeen ring carbon atoms or a heterocyclic aryl group having five to seventeen ring carbon atoms, wherein said cyclic groups can be unfused or fused, and unsubstituted or substituted; R 2 represents a hydrogen; alkyl, alkenyl, alkoxy, alkenyloxy, acyloxy, alkylthio, alkenylthio, alkylamino or dialkylamino having one to six carbon atoms; halogen; fluoroalkyl group having one to three fluorine atoms and one to three carbon atoms; hydroxyl; carboxyl; amino or azido; R 3 and R 5 both represent hydrogen, or R 3 and R 5 are linked as a cyclic carbonate; R 4 represents an alkyl or alkenyl group having one to six carbon atoms; or a cycloalkyl or cycloalkenyl group having three to seven ring carbon atoms; and R 6 represents a fluorovinyl, difluorovinyl, or trifluorovinyl group having the formula wherein R 7 , R 8 , and R 9 each independently represent a hydrogen or fluoro group, provided that at least one of R 7 , R 8 , and R 9 represents a fluoro group.