(3R,6S,7S,8R,8aS)-6-[(1-benzenesulfonyl-2-vinyl-3-indolyl)-methyl]-8-ethyl-5-oxo-3-phenyl-7-vinyl-2,3,6,7,8,8a-hexahydro-5H-oxazolo[3,2-a]pyridine 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
甲苯 为溶剂,
反应 384.0h,
以24%的产率得到(1S,14S,15R,16S,19R)-10-(benzenesulfonyl)-15-ethyl-19-phenyl-17-oxa-10,20-diazapentacyclo[12.7.0.03,11.04,9.016,20]henicosa-3(11),4,6,8,12-pentaen-21-one