4-孕烯-17Alpha,20Alpha-二醇- 3 -酮

pregnadien-(4.17(20)t)-one-(3)

巯基乙酸

5α-Chloro-3β,17α-dihydroxypregnan-20-one

17-hydroxy-2ξ-iodo-pregn-4-ene-3,20-dione