还原胆烷醇酮

(Z)-5β-pregn-17(20)-en-3α-ol

[(1S)-1-[(3R,5R,8R,9S,10S,13S,14S,17S)-3-乙酰氧基-10,13-二甲基-2,3,4,5,6,7,8,9,11,12,14,15,16,17-十四氢-1H-环戊并[a]菲-17-基]乙基]乙酸酯

3α-acetoxy-24-nor-5β-cholan-22-one

5beta-孕甾烷-3,20-二酮