(E)-17-<(Diethylphosphono)formamidomethylene>-3-methoxyandrosta-3,5-diene

1,4-孕甾二烯-3,20-二酮

20ξ-(Diethylphosphono)-20ξ-isocyano-3-methoxypregna-3,5-diene

6β-bromo-4-pregnene-3,20-dione

3-巯基丙酸