(R)-4-((3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-trimethoxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentyl sulfamate 在
碘苯二乙酸 、 [(2,2':6',2'':6'',2''':6''',2''''-quinquepyridine)bis(acetonitrile)iron(II)] perchlorate 、
magnesium oxide 作用下,
以
乙腈 为溶剂,
反应 12.0h,
以71%的产率得到4-((S)-1-((3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-trimethoxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethyl)-1,2,3-oxathiazinane 2,2-dioxide