(2E)-4-(allyl{4-chloro-2-[2,3-dihydro-1,4-benzodioxin-5-yl(hydroxy)methyl]phenyl}amino)-4-oxo-but-2-enoic acid ethyl ester 在
potassium carbonate 作用下,
以
乙醇 为溶剂,
反应 16.0h,
生成 [1-allyl-7-chloro-5-(2,3-dihydro-1,4-benzodioxin-5-yl)-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-3-yl]acetic acid ethyl ester 、 [1-allyl-7-chloro-5-(2,3-dihydro-1,4-benzodioxin-5-yl)-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-3-yl]acetic acid ethyl ester