1,4-二氢-1,4-环氧萘 、
14-O-benzyl 10-O,12-O-dimethyl (1R,8S,9S,10S,12R,13R)-11-benzyl-11,14-diazapentacyclo[6.5.1.02,7.09,13.010,12]tetradeca-2,4,6-triene-10,12,14-tricarboxylate 以
苯 为溶剂,
以46%的产率得到25-O-benzyl 1-O,12-O-dimethyl (1S,2R,3R,10S,11S,12R,13S,14R,21S,22R)-23-benzyl-24-oxa-23,25-diazaoctacyclo[10.10.1.13,10.114,21.02,11.04,9.013,22.015,20]pentacosa-4,6,8,15,17,19-hexaene-1,12,25-tricarboxylate