Practical and efficient synthesis of gefitinib through selective <i>O</i>-alkylation: A novel concept for a transient protection group
作者:Sung Kwon Kang、Seung Wook Lee、Daekoo Woo、Jaehoon Sim、Young-Ger Suh
DOI:10.1080/00397911.2017.1359627
日期:2017.11.2
that includes a simple four-step procedure for the preparation of gefitinib (1), a tyrosine kinase inhibitor that targets the epidermal growth factor receptor, is described. Dramatic improvements over previously reported conventional synthetic procedures were achieved. We found effective coupling conditions to minimize the inevitable production of an N-alkylated side product, N-(3-chloro-4-fluorophe
摘要描述了一个实用的过程,包括一个简单的四步程序,用于制备吉非替尼 (1),一种靶向表皮生长因子受体的酪氨酸激酶抑制剂。实现了对先前报道的常规合成程序的显着改进。我们找到了有效的偶联条件,以最大限度地减少不可避免的 N-烷基化副产物 N-(3-chloro-4-fluorophenyl)-7-methoxy-6-(3-morpholinopropoxy)-N-(3-morpholinopropyl)-使用瞬态三甲基甲硅烷基保护基团的喹唑啉-4-胺 (3)。我们使用一种不需要任何反应步骤后处理的路线,以多克规模从市售的起始材料中以 81.1% 的总产率合成了吉非替尼。图形概要