338744-51-7

SPIRO[4H,8H-[1,4]DIOXEPINO[2,3-G]INDOLE-8,7'(8'H)-[5H,6H-5A,9A](IMINOMETHANO)[1H]CYCLOPENT[F]INDOLIZINE]-10(9H)-CARBOXYLIC ACID, 2',3',8'A,9'-TETRAHYDRO-1'-HYDROXY-1',4,4,8',8',11'-HEXAMETHYL-9,10'-DIOXO-, 9H-FLUOREN-9-YLMETHYL ESTER, (1'R,5'AS,7'R,8'AS,9