3-[3-(4-Chlorophenoxy)prop-1-en-2-yl]-8-methyl-2,5-dihydropyrano[4,3-b]oxepin-6-one 、
富马酸二甲酯 以
甲苯 为溶剂,
反应 4.0h,
以95%的产率得到dimethyl (9S,10S,10aS)-7-[(4-chlorophenoxy)methyl]-3-methyl-1-oxo-6,8,9,10,10a,11-hexahydropyrano[4,3-c][2]benzoxepine-9,10-dicarboxylate