Synonyms: 2H-3,11cb-(Epoxymethano)phenanthro[10,1-bc]pyran-3a(3abH)-carboxylic acid, 1,4,5,6ab,7,7aa,10,11,11a,11ba-decahydro-1b,2a,4b,9-tetrahydroxy-8,11ab-dimethyl-5,10-dioxo-, methylester, 1,2,9-triacetate 3-methylcrotonate (8CI);2H-3,11c-(Epoxymethano)phenanthro[10,1-bc]pyran, picras-3-en-21-oic acidderiv.; Brusatol triacetate