乙醇 、
hebevinoside IV 在
citric acid-0.2 M Na
2HPO
4 buffer 作用下,
反应 96.0h,
以5 mg的产率得到(3S,7S,8R,9S,10S,13R,14S,16S,17R)-17-((R)-1,5-Dimethyl-hex-4-enyl)-7-ethoxy-4,4,9,13,14-pentamethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,16-diol