描述:
dimethyl (1S,2R,6R,7R)-10-[tert-butyl(dimethyl)silyl]oxy-5-phenyl-3-oxa-4,10-diazatricyclo[5.2.1.02,6]deca-4,8-diene-8,9-dicarboxylate 、 dimethyl (1R,2R,6R,7S)-10-[tert-butyl(dimethyl)silyl]oxy-5-phenyl-3-oxa-4,10-diazatricyclo[5.2.1.02,6]deca-4,8-diene-8,9-dicarboxylate 以64%的产率得到