4-acetoxy-11,12-epoxy-2,8-di(2'-methylbutanoyloxy)-9-(3''-methyl-2''-pentenoyloxy)-10(14)-oplopen-3-one
4-acetoxy-11,12-epoxy-2,8-di(2'-methylbutanoyloxy)-9-(3''-methyl-2''-pentenoyloxy)-10(14)-oplopen-3-one