3β-(2',3',4'-triacetyl-α-L-rhamnopyranosyl)oxy-5β-pregnan-20-one-1β,5,11α,14β,19,21-hexol 1,11,19-triacetate 在
copper diacetate 、 tetrakis(trifluoroacetato)rhodium(II) 、
氧气 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 0.17h,
生成 Acetic acid (3aS,5aS,5bR,7aS,9S,11R,11aR,11bS,12R,13aR)-12-acetoxy-11a-acetoxymethyl-5a,7a-dihydroxy-3-oxo-9-((2R,3R,4R,5S,6S)-3,4,5-triacetoxy-6-methyl-tetrahydro-pyran-2-yloxy)-octadecahydro-pentaleno[1,6a-a]phenanthren-11-yl ester