4-[(dimethylamino)methylidene]-3,4-dihydro-1H-pyrido[4,3-b]azepine-2,5-dione 、 3-Chlor-4-hydroxyphenylguanidin 在
sodium hydroxide 作用下,
以
异丙醇 为溶剂,
反应 15.0h,
以35%的产率得到2-(3-chloro-4-hydroxyanilino)-5,7-dihydro-6H-pyrido[4,3-b]pyrimido[4,5-d]azepin-6-one