allyl (7aR,7bR,8S)-8-((R)-1-((tert-butyldimethylsilyl)oxy)ethyl)-9-oxo-6,7,7a,7b,8,9-hexahydroazeto[1',2':1,5]pyrrolo[3,4-a]acridine-11-carboxylate

allyl (7aS,7bR,8S)-8-((R)-1-((tert-butyldimethylsilyl)oxy)ethyl)-9-oxo-6,7,7a,7b,8,9-hexahydroazeto[1',2':1,5]pyrrolo[3,4-a]acridine-11-carboxylate

4,5-dihydro-2H-pyrazolo<3,4-a>acridine