A facile and efficient synthesis of novel pyrimido[5,4‐b][4,7]phenanthroline‐9,11(7H,8H,10H,12H)‐dione derivatives via microwave‐assisted multicomponent reactions
1. School of Chemistry & Chemical Engineering, Xuzhou Normal University, Xuzhou, Jiangsu 221116, People's Republic of China;2. Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou Normal University, Xuzhou, Jiangsu 221116, People's Republic of China;3. Department of Chemistry, Lianyungang Normal University, Lianyungang, Jiangsu 222006, People's Republic of China
