Patent ID: 8895590

Claim:
An epothilone compound represented by the following general formula (I): wherein, A-D is carbon-carbon double bond of the following formula (a) or epoxy group of the following formula (b), X is O; W is NR 1 R or W is OR′ provided that A-D is an epoxy group of formula (b), wherein R is selected from H, amino protective group, substituted or unsubstituted lower alkyl or unsaturated hydrocarbonyl; and R′ is selected from substituted or unsubstituted lower alkyl or unsaturated hydrocarbonyl; R 1 is selected from OH, substituted or unsubstituted lower alkyl or unsaturated hydrocarbonyl, or forms cycloalkyl together with R; R 2 is selected from H, substituted or unsubstituted lower alkyl or unsaturated hydrocarbonyl, or forms lower cycloalkyl with the methyl on C-4 position; R 3 is selected from H, OH or NH 2 ; R 4 is methyl; or a pharmaceutically acceptable salt, hydrate, polymorph, optical isomer, racemate, diastereoisomer or enantiomer thereof.