lumiprednisolone 21-acetate 以
1,4-二氧六环 为溶剂,
反应 2.0h,
以72%的产率得到Acetic acid 2-((3aS,4aS,5aS,6R,8aS,8bS,10bS,10cS)-6-hydroxy-5a,10b-dimethyl-3-oxo-3,3a,4a,5,5a,6,7,8,8a,8b,9,10,10b,10c-tetradecahydro-2H-4-oxa-dicyclopenta[a,def]phenanthren-6-yl)-2-oxo-ethyl ester