4-O-tert-butyl 3-O-methyl (1S,3S,5S,11S,12S)-14-(4-methylphenyl)sulfonyl-12-methylsulfanylcarbothioyloxy-7-oxa-4,14-diazatetracyclo[9.4.0.01,5.06,10]pentadeca-6(10),8-diene-3,4-dicarboxylate 在
偶氮二异丁腈 、
三正丁基氢锡 作用下,
以
甲苯 为溶剂,
以46.1 mg的产率得到4-O-tert-butyl 3-O-methyl (1S,3S,5S,11S)-14-(4-methylphenyl)sulfonyl-7-oxa-4,14-diazatetracyclo[9.4.0.01,5.06,10]pentadeca-6(10),8-diene-3,4-dicarboxylate