(-)-Epothilone B 152044-54-7 4,17-Dioxabicyclo(1410)heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-((1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl)-, (1S,3S,7S,10R,11S,12S,16R)- 4,17-Dioxabicyclo(1410)heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-(1-methyl-2-(2-methyl-4-thiazolyl)ethenyl)-, (1S-(1R*,3R*(E),7R*,10S*,11R*,12R*,16S*))- EPO 906 Epothilone B Patupilone