1,4-二氢-1,4-环氧萘 、
dimethyl (1R,8S,9S,10R,12S,13R)-11-benzylspiro[11-azapentacyclo[6.5.1.02,7.09,13.010,12]tetradeca-2,4,6-triene-14,1'-cyclopropane]-10,12-dicarboxylate 以
苯 为溶剂,
以74%的产率得到dimethyl (1R,2R,3R,10S,11S,12S,13R,14S,21R,22S)-23-benzylspiro[24-oxa-23-azaoctacyclo[10.10.1.13,10.114,21.02,11.04,9.013,22.015,20]pentacosa-4,6,8,15,17,19-hexaene-25,1'-cyclopropane]-1,12-dicarboxylate