第 50 卷第 5 期Vol. 50 No. 5
2020 年 10 月Oct 2020

所属栏目:医药及中间体

5-羟基异喹啉-7-羧酸及其异构体7-羟基异喹啉-5-羧酸的合成
赵 波1,晋浩文1,赵丽芳1,张 玲1,徐卫良2,徐炜政1,2* (1. 徐州医科大学 药学院,江苏 徐州 221004;2. 苏州康润医药有限公司,江苏 苏州 215000)
摘 要:对重要的医药中间体5-羟基异喹啉-7-羧酸和7-羟基异喹啉-5-羧酸的合成工艺进行了初步研究,以3,5-二溴苯甲醛为原料经过Pomeranz-Fritsch、甲基化、钯催化插羰、水解和脱甲基等多步反应得到目标化合物,产品的纯度分别为98.2%、97.8%,收率分别为86.3%、83.7%。其结构经1H NMR,13C NMR和LC-MS确证。
关键词:5-羟基异喹啉-7-羧酸;7-羟基异喹啉-5-羧酸;异喹啉;合成
中图分类号:O626  文献标识码:A  文章编号:1009-9212(2020)05-0044-05
Synthesis of 5-Hydroxy Isoquinoline-7-carboxylic Acid and Its Isomer
ZHAO Bo1, JIN Hao-wen1, ZHAO Li-fang1, ZHANG Ling1, XU Wei-liang2, XU Wei-zheng1,2* (1. School of Pharmaceutical Science, Xuzhou Medical University, Xuzhou 221004, China; 2. Suzhou Kangrun Pharmaceuticals Ins, Suzhou 215000, China )
Abstract:The purpose of this paper is to study the synthetic process of the important pharmaceutical intermediates of 5-hydroxyisoquinoline-7-carboxylic acid and 7-hydroxyisoquinoline-5-carboxylic. The target compound and their isomers were prepared by 3,5-dibromobenzaldehyde via Pomeranz Fritsch synthesis, methylation, palladium catalyzed carbonylation, hydrolysis and demethylation. The purity of the product is 98.2%,97.8% and the yield is 86.3%, 83.7%. The structures of the target compounds were confirmed by 1H NMR, 13C NMR and LC-MS.
Key words:5-hydroxyisoquinoline-7-carboxylic; 7-hydroxyisoquinoline-5-carboxylic; isoquinoline; synthetic
作者简介:赵 波(1994—),男,安徽合肥人,硕士研究生,研究方向:药物化学(E-mail:1797315207@qq.com)。
联 系 人:徐炜政,研究方向:药物化学(E-mail:xuweizheng@yahoo.com)。
收稿日期:2020-08-05