Synthesis of Novel 15-aryl-2,3,4,15-tetrahydrochromeno[2′,3′:4,5] Pyrimido[6,1-b]Quinazoline-1,9-diones
作者:Xiu-Xiu Kong、Yong-Nan Cao、Zheng Xing、Li-Zhuang Chen、Guang-Fan Han
DOI:10.3184/174751916x14527702465295
日期:2016.2
A new series of 15-aryl-2,3,4,15-tetrahydrochromeno[2′,3′:4,5]pyrimido[6,1-b]quinazoline-1,9-diones was synthesised by the cyclisation of methyl anthranilate with ethyl N-(3-cyano-5-oxo-4-aryl-5,6,7,8-tetrahydro-4H-chromen-2-yl)formimidate derivatives, which were obtained by the reactions of 2-amino-5-oxo-4-aryl-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile derivatives and triethyl orthoformate. The
通过甲基环化合成了一系列新的15-芳基-2,3,4,15-四氢色基[2',3':4,5]嘧啶并[6,1-b]喹唑啉-1,9-二酮邻氨基苯甲酸乙酯与 N-(3-cyano-5-oxo-4-aryl-5,6,7,8-tetrahydro-4H-chromen-2-yl)formimidate 衍生物,由 2-amino- 5-oxo-4-aryl-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile 衍生物和原甲酸三乙酯。通过单晶X射线衍射分析进一步确定了2,4-二氯苯基衍生物的结构。