(Z)-3β-Acetoxy-16-<methylene>-5α-androstan-17β-ol 、
三氯乙酰异氰酸酯 生成 Acetic acid (3S,5S,8R,9S,10S,13S,14S,17R)-16-[1-{acetyl-[2-(2,2,2-trichloro-acetylcarbamoyloxy)-ethyl]-amino}-meth-(Z)-ylidene]-10,13-dimethyl-17-(2,2,2-trichloro-acetylcarbamoyloxy)-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester