(3-chlorophenyl)methyl-1,4,5,6-tetrahydropyrimidine amidated 2-chloro-3-pyridinecarbonyl chloride, and potassium t-butoxide cyclized the products to linearly fused, tricyclic imidazo-and pyrimido[1,2-g][1,6]naphthyridinones. Condensation of ethyl 2-chloro-3-pyridinecarboxylate with 2-(phenylmethyl)imidazoline in the presence of sodium methoxide directly formed the isomeric, angularly fused 8,9-dihydro-6-phenylimidazo[1
芳基甲基
咪唑啉和(3-
氯苯基)甲基-1,4,5,6-四氢
嘧啶酰胺化2-
氯-3-
吡啶羰基
氯,
叔丁醇钾将产物环化为线性稠合的
三环咪唑基和
嘧啶基[1,2- g ] [1,6]
萘啶酮。2-
氯-3-
吡啶甲酸乙酯与2-(苯基甲基)
咪唑啉在
甲醇钠存在下的缩合反应直接形成异构的,有角熔融的8,9-二氢-6-苯基
咪唑[1,2- a ] [1,8
萘啶-5(7 H-一。