benzyl (1R,12R)-12-[(4aS,11cR)-8,9-dimethoxy-7-methyl-1-(2-methylsulfanylcarbothioyloxyethyl)-4a-[2-oxo-2-(2-trimethylsilylethoxy)ethyl]-2,3,4,11c-tetrahydropyrido[3,2-c]carbazol-10-yl]-4,16-dioxo-7-phenylmethoxy-5,15-diazatetracyclo[10.3.1.01,5.06,11]hexadeca-6(11),7,9-triene-15-carboxylate 在
偶氮二异丁腈 、
三正丁基氢锡 作用下,
以
苯 为溶剂,
反应 2.0h,
以32%的产率得到benzyl (1R,12R)-12-[(1R,9R,12S,19R)-5,6-dimethoxy-8-methyl-12-[2-oxo-2-(2-trimethylsilylethoxy)ethyl]-8,16-diazapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2,4,6,10-tetraen-4-yl]-4,16-dioxo-7-phenylmethoxy-5,15-diazatetracyclo[10.3.1.01,5.06,11]hexadeca-6(11),7,9-triene-15-carboxylate