(3R,5R,7S,8R,9S,10S,13R,14S,17R)-17-((R)-1-((1R,2R)-2-(ethoxycarbonyl)cyclopropyl)ethyl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3,7-diyl diacetate

ethyl 1-phenylaziridine-2-carboxylate

ethyl trans-3-methyl-trans-2-phenylcyclopropanecarboxylate

Ethyl 2-bromo-3-methyl-4-pentenoate

乙氧甲酰基亚甲基三苯基膦