methyl (8S)-6-[5-(1-benzofuran-2-carbonylamino)-1H-indole-2-carbonyl]-8-(chloromethyl)-4-hydroxy-7,8-dihydro-3H-pyrrolo[3,2-e]indole-1-carboxylate 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
乙腈 为溶剂,
以92%的产率得到methyl (1R,12S)-10-[5-(1-benzofuran-2-carbonylamino)-1H-indole-2-carbonyl]-7-oxo-5,10-diazatetracyclo[7.4.0.01,12.02,6]trideca-2(6),3,8-triene-3-carboxylate