16β-methyl-6β,7β,11β,17α,21-pentahydroxy-1,4-pregnadiene-3,20-dione 17,21-dipropionate 在
对甲苯磺酸 、
溶剂黄146 作用下,
以
二甲基亚砜 为溶剂,
反应 2.5h,
生成 Propionic acid (6S,7R,8S,9S,10R,11S,13S,14S,16S,17R)-7,11-dihydroxy-10,13,16-trimethyl-3-oxo-6-propionyloxy-17-(2-propionyloxy-acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl ester