英文别名
3-oxo-21-nor-5β.17βH-pregnanoic acid-(20)-methyl ester;3-oxo-21-nor-5β.14β.17βH-pregnanoic acid-(20)-methyl ester;3-oxo-21-nor-5α.17βH-pregnanoic acid-(20)-methyl ester;methyl 10,13-dimethyl-3-oxo-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthrene-17-carboxylate;methyl 3-oxo-5β-androstane-17β-carboxylate