(1R,2S)-ethyl 1-((2S,4R)-4-(biphenyl-4-yl)-1-((S)-2-(tert-butoxycarbonylamino)-3-(2-nitro-N-(pent-4-enyl)phenylsulfonamido)propanoyl)-4-methoxypyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) ethyl acetate n-hexane 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以to isolate 65 mg (71%) of (2R,6S,13aS,14aR,16aS,Z)-ethyl 2-(biphenyl-4-yl)-6-(tert-butoxycarbonylamino)-2-methoxy-8-(2-nitrophenylsulfonyl)-5,16-dioxo-1,2,3,5,6,7,8,9,10,11,13a,14,14a,15,16,16a-hexadecahydrocyclopropa[n]pyrrolo[2,1-c][1,4,8]triazacyclopentadecine-14a-carboxylate as an off-white solid的产率得到(2R,6S,13aS,14aR,16aS,Z)-ethyl 2-(biphenyl-4-yl)-6-(tert-butoxycarbonylamino)-2-methoxy-8-(2-nitrophenylsulfonyl)-5,16-dioxo-1,2,3,5,6,7,8,9,10,11,13a,14,14a,15,16,16a-hexadecahydrocyclopropa[n]pyrrolo[2,1-c][1,4,8]triazacyclopentadecine-14a-carboxylate