重氮甲烷 、
4-(4-chlorobenzyl)-6-hydroxycarbonyl-2-methylphthalazin-1(2H)-one 、
4-(4-chlorobenzyl)-7-hydroxycarbonyl-2-methylphthalazin-1(2H)-one 以
乙醚 为溶剂,
生成 4-(4-chlorobenzyl)-6-methoxycarbonyl-2-methylphthalazin-1(2H)-one 、 4-(4-chlorobenzyl)-7-methoxycarbonyl-2-methylphthalazin-1(2H)-one