(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-Tris-allyloxy-17-((R)-4-methoxy-1-methyl-butyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene 在
ruthenium trichloride 、
sodium periodate 作用下,
以
四氯化碳 、
水 、
乙腈 为溶剂,
反应 3.0h,
以33%的产率得到[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-carboxymethoxy-17-((R)-4-methoxy-1-methyl-butyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-12-yloxy]-acetic acid