(11beta,12alpha,15beta)-13,20-Epoxy-3,11,12-trihydroxy-15-((3-methyl-1-oxo-2-butenyl)oxy)-2,16-dioxopicras-3-en-21-oic acid, methyl ester 14907-98-3 2H-3,11c-beta-(Epoxymethano)phenanthro(10,1-bc)pyran-3-alpha(3a-beta-H)-carboxylic acid, 1,4,5,6a-beta,7,7a-alpha,10,11,11a,11b-alpha-decahydro-8,11a-beta-dimethyl-5,10-dioxo-1-beta,2-alpha,4-beta,9-tetrahydroxy-, methyl ester, 4-(3-methylcrotonate) BRN 1444847 Brusatol Methyl 13,20-epoxy-3,11,12-trihydroxy-15-((3-methyl-1-oxo-2-butenyl)oxy)-2,16-dioxopicras-3-en-21-oate (11beta,12alpha,15beta)- NSC 172924 Picras-3-en-21-oic acid, 13,20-epoxy-3,11,12-trihydroxy-15-((3-methyl-1-oxo-2-butenyl)oxy)-2,16-dioxo-, methyl ester, (11beta,12alpha,15beta)- Yatansin