(2S,5R)-tert-Butyl 1-((2S,3R)-2-((tert-butoxycarbonyl)amino)-3-methylpent-4-enyl)-5-vinylpyrrolidine-2-carboxylate 、
二甲基亚砜 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 氩 、 silica gel 、 EtOAc CyHex 作用下,
以
二氯甲烷 为溶剂,
反应 20.0h,
以By chromatography on silica gel with EtOAc/CyHex 1:2 as eluent, 249 mg (0.654 mmol, 89%) of the product 117 were obtained as a brown oil的产率得到tert-butyl (3S,6S,7R,9aR)-6-((tert-butoxycarbonyl)amino)-7-methyl-5-oxo-2,3,5,6,7,9a-hexahydro-1H-pyrrolo[1,2-a]azepine-3-carboxylate