(3aR,11bS,13aS)-9-oxo-1,2,3,11b,13,13a-hexahydro-9H-pyrido[1,2,3-lm]pyrrolo[2,3-d]carbazole-1-carboxylic acid tert-butyl ester

(3aR,11bS,12aS)-1-[(Z)-4-(tert-bityldimethylsilyloxy)-2-iodo-2-butenyl]-1,2,3,11a,11b,13a-hexahydro-9H-pyrido[1,2,3-lm]pyrrolo[2,3-d]carbazol-9-one

(-)-(21E)-8,11,12,13-tetradehydro-24-(tert-butyldimethylsilyl)-12,24-secostrychnidin-10-one

methyl 4-formylhex-4-enoate

(E)-methyl 4-(2-((5-methoxy-5-oxo-2-vinylpent-1-en-1-yl)(methoxycarbonyl)amino)phenyl)-2,3-dihydro-1H-pyrrole-1-carboxylate