1217883-03-8

2-(TERT-BUTYL-DIMETHYL-SILANYLOXY)-13-[7A-METHYL-1-(1,2,4-TRIMETHYL-PENT-2-ENYL)-OCTAHYDRO-INDEN-4-YLIDENEMETHYL]-2,3,4,4A,13,13A-HEXAHYDRO-1H-INDAZOLO[1,2-B]PHTHALAZINE-6,11-DIONE