的一些新的衍生物3,5-二芳基-4-亚氨基5,7,8,9-四氢-3- ħ -chromeno [2,3- d ]嘧啶已通过的缩合反应来制备2-氨基-4-芳基-3-氰基-5-6,7,8-四氢苯并[ b ]吡喃与原甲酸三乙酯在沸腾的乙酸酐中,然后在几滴三乙胺作为乙醇回流催化剂的情况下,与伯芳基胺环合。根据红外光谱,1 H-NMR和13 C-NMR光谱和微分析数据对产物进行表征。
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