141137-59-9 (1'R,8R,8a'S)-1'-hydroxy-1',4,4,8',8',11'-hexamethyl-2',3',8a',9'-tetrahydro-1'H,4H,8'H,10'H-spiro[1,4-dioxepino[2,3-g]indole-8,7'-[5a,9a](epiminomethano)cyclopenta[f]indolizine]-9,10'(10H)-dione 4'-oxide 125600-54-6 Spiro[5H,6H-5a,9a-(iminomethano)-1H-cyclopent[f]indolizine-7(8H),3'(2'H)-pyrano[2,3-g]indole]-2',10-dione,1',2,3,7',8a,9-hexahydro-1,7',7',8,8,11-hexamethyl-, [1S-(1a,5aa,7a,8aa,9aa)]-