The molecule is an epithilone that is epithilone D in which the double bond in the macrocyclic ring has been oxidised to the corresponding epoxide (the S,S stereoisomer). It has a role as an apoptosis inducer, an antineoplastic agent and a microtubule-stabilising agent. It is an epothilone and an epoxide.
(1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione