ethyl 5-(formylamino)-5,8-dihydro-8-oxo-1,3-dioxolo[4,5-g]-quinoline-7-carboxylate 在
alcohol 、
乙醚 作用下,
以
甲酸 为溶剂,
反应 8.0h,
以to give 2.3 g of 5-(formylamino)-5,8-dihydro-8-oxo-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid, tan crystals, m.p. 302° C. (decompn.)的产率得到5-(formylamino)-5,8-dihydro-8-oxo-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid