17,21-dihydroxy-6α-fluoro-16β-methylpregna-1,4,9(11)-triene-3,20-dione 17,21-diacetate 在
氯 作用下,
以
吡啶 、
四氯化碳 为溶剂,
反应 0.25h,
以0.840 g的产率得到Acetic acid (6S,8S,9R,10S,11S,13S,14S,16S,17R)-17-(2-acetoxy-acetyl)-9,11-dichloro-6-fluoro-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl ester