Convenient one-pot synthesis of N3-substituted pyrido[2,3-d]-, pyrido[3,4-d]-, pyrido[4,3-d]-pyrimidin-4(3H)-ones, and quinazolin-4(3H)-ones analogs
作者:Emmanuel Deau、Damien Hédou、Elizabeth Chosson、Vincent Levacher、Thierry Besson
DOI:10.1016/j.tetlet.2013.04.096
日期:2013.7
A convenient microwave-assisted one-pot sequential synthesis provided access to novel pyridopyrimidin-4-(3H)-ones in good to excellent yields. Anthranilic acid, 2- and 4-aminonicotinic acids, and 3-aminoisonicotinic acid were quantitatively converted into the analogous amidinoesters which undergo rapid cyclization in the presence of an amine.
方便的微波辅助一锅法连续合成提供了以优异的产率获得新颖的吡啶并嘧啶-4-(3 H)-一的方法。将邻氨基苯甲酸,2-和4-氨基烟酸和3-氨基异烟碱酸定量转化为类似的mid基酯,其在胺的存在下进行快速环化。