(11beta,16beta)-21-(acetyloxy)-9-fluoro-11-hydroxy-16-methyl-3,20-dioxopregna-1,4-dien-17-yl (1R)-1-phenylethylcarbamate 在
乙酸乙酯 、
水 、 Brine 、
Sodium sulfate-III 、 silica gel 、 Hexane ethyl acetate dichloromethane methanol 作用下,
以
pre-mixed solution 、
chloroform methanol 为溶剂,
反应 24.5h,
以to yield 20 mg of (11β,16β)-9-fluoro-11,21-dihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-17-yl (1R)-1-phenylethylcarbamate as a white solid的产率得到(11beta,16beta)-9-Fluoro-11,21-dihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-17-yl (1R)-1-phenylethylcarbamate