乙酸酐 、 (24R)-6α,11α,16β,24,25-pentahydroxycycloartan-3-one 在
吡啶 作用下,
反应 24.0h,
以10 mg的产率得到Acetic acid (6S,9R,10R,11R,13R,14S,16S)-6,16-diacetoxy-17-((1R,4R)-4-acetoxy-5-hydroxy-1,5-dimethyl-hexyl)-4,4,13,14-tetramethyl-3-oxo-tetradecahydro-cyclopropa[9,10]cyclopenta[a]phenanthren-11-yl ester