上游原料
Imidazole; 1H-Imidazole(5S,8R,9S,10S,13S,14S,17S)-17-acetyl-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-one 1-[(3R,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-3-(methoxymethyl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl]-1-ethanone2-bromo-1-[(3R,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-3-(methoxymethyl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl]-1-ethanone
