methyl 4-(4-chlorobenzyl)-1-methyl-6-oxabicyclo[3.2.0]heptane-5-carboximidate 在
sodium nitrate 、
硫酸 作用下,
以
甲苯 为溶剂,
生成 (1RS,4SR,5RS)-4-(4-chlorobenzyl)-1-methyl-6-oxa-bicyclo[3,2,0]heptane-5-carboxylic acid methyl ester 、
(1RS,5RS)-4-(4-chlorobenzyl)-1-methyl-6-oxabicyclo[3.2.0]heptane-5-carboxamide