Microwave-Assisted Synthesis of Diversely Substituted Quinoline-Based Dihydropyridopyrimidine and Dihydropyrazolopyridine Hybrids
作者:Daniel Insuasty、Rodrigo Abonia、Braulio Insuasty、Jairo Quiroga、Kenneth K. Laali、Manuel Nogueras、Justo Cobo
DOI:10.1021/acscombsci.7b00091
日期:2017.8.14
An efficient, catalyst-free, and one-pot three-component procedure for the synthesis of novel and nitrogen rich dihydropyrido[2,3-d]pyrimidines and dihydro-1H-pyrazolo[3,4-b]pyridines bearing a quinoline pharmacophore fragment is provided. Reactions proceeded in DMF under microwave irradiation of three-component mixtures of formyl-quinoline derivatives, primary heterocyclic amines and cyclic 1,3-diketones
一种高效,无催化剂的单锅三组分方法,用于合成新型和富氮的二氢吡啶并[2,3- d ]嘧啶和带有喹啉的二氢-1H-吡唑并[3,4- b ]吡啶提供了药效团片段。在微波辐射下,甲酰喹啉衍生物,伯杂环胺和环状1,3-二酮的三组分混合物在DMF中进行反应。有趣的是,当将常规的回流加热用于起始5-氨基-1-苯基吡唑时,获得了相应的芳香化吡唑并吡啶作为主要产物。单晶X射线分析清楚地证实了二氢和芳构化产物的结构。