23952-05-8
4-ethoxycarbonyl-1(2H)-phthalazinone
→
~91%
38933-79-8
4-(hydroxymethyl)-2H-phthalazin-1-one
3260-44-4
4-羟基酞嗪-1-羧酸
+
543-27-1
氯甲酸异丁酯