Grignard Reagent Utilization Enables a Practical and Scalable Construction of 3-Substituted 5-Chloro-1,6-naphthyridin-4-one Derivatives
作者:Ming-Shu Wang、Yi Gong、Zhi-Cheng Yu、Yan-Guang Tian、Lin-Sheng Zhuo、Wei Huang、Neng-Fang She
DOI:10.3390/molecules25235667
日期:——
reagents, a wide range of 3-substituted 5-chloro-1,6-naphthyridin-4-one derivatives 13 were conveniently synthesized in moderate-to-good yields through addition–acidolysis–cyclocondensation. In addition, the robustness and applicability of this synthetic route was proven on a 100 g scale, which would enable convenient sample preparation in the preclinical development of 1,6-naphthyridin-4-one-based MET-targeting
开发了一种稳健、实用且可扩展的方法,用于通过将格氏试剂添加到 4-氨基-2-氯烟腈 (15) 来构建 3-取代的 5-氯-1,6-萘啶-4-one 衍生物 13。从各种格氏试剂开始,通过加成-酸解-环缩合反应,以中等至良好的产率方便地合成了各种 3-取代的 5-氯-1,6-萘啶-4-酮衍生物 13。此外,该合成路线的稳健性和适用性已在 100 g 规模上得到证明,这将使基于 1,6-naphthyridin-4-one 的 MET 靶向抗肿瘤候选药物的临床前开发中的样品制备变得方便。