Acetic acid (3S,5R,8S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-6-[(E)-hydroxyimino]-5,13-dimethyl-2,3,4,5,6,7,8,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
三氯氧磷 作用下,
以
吡啶 为溶剂,
反应 0.17h,
以150 mg的产率得到Acetic acid (1R,3aS,3bS,6aR,8S,12aR)-1-((R)-1,5-dimethyl-hexyl)-6a,12a-dimethyl-5-oxo-1,2,3,3a,3b,4,5,6,6a,7,8,9,10,11,12,12a-hexadecahydro-benzo[b]indeno[5,4-d]azepin-8-yl ester