C
74H
91N
7O
15 、
碘甲烷 以
乙腈 为溶剂,
反应 48.0h,
以53%的产率得到dibenzyl (2S)-2-[[(2S,3S)-2-[[(2S)-1-[(2S,7S)-7-[(1R,9R,10S,11R,12R,19R)-11-acetyloxy-12-ethyl-10-hydroxy-5-methoxy-10-methoxycarbonyl-8-methyl-8,16-diazapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2,4,6,13-tetraen-4-yl]-7-methoxycarbonyl-3-methyl-3-propyl-1,2,4,5,6,8-hexahydroazonino[5,4-b]indol-3-ium-2-carbonyl]pyrrolidine-2-carbonyl]amino]-3-methylpentanoyl]amino]butanedioate