11-Methoxy-18-methyl-7-oxa-17,18-diazapentacyclo[7.7.1.12,5.06,17.010,15]octadeca-10(15),11,13-triene-3-carboxylic acid 、
重氮甲烷 生成 methyl 11-methoxy-18-methyl-7-oxa-17,18-diazapentacyclo[7.7.1.12,5.06,17.010,15]octadeca-10(15),11,13-triene-3-carboxylate