第 49 卷第 5 期Vol. 49 No. 5
2019 年 10 月Oct 2019

所属栏目:医药及中间体

4-氯-2-(N-甲基-N-苯基胺磺酰基)苯甲酸甲酯的合成
张恩乾1,王俊峰2,周英雷2,夏春年1,2* (1. 浙江工业大学 药学院,浙江 杭州 310014;2. 浙江叠智医药科技有限公司,浙江 杭州 310014)
摘 要:以2-氨基-4-氯苯甲酸为原料,经重氮化、酯化、氧化缩合共3步反应,得到4-氯-2-(N-甲基-N-苯基胺磺酰基)苯甲酸甲酯(1)。考察了反应温度、催化剂用量、物料配比等对反应的影响。优化条件下,以62.7%总收率合成了化合物1。优化合成工艺操作简单,收率高,成本低,适合工业化生产。化合物1 的结构经1H NMR、13C NMR 、MS、IR、熔点等确证。
关键词:噻萘普汀;中间体;合成;二硫醚
中图分类号:O649  文献标识码:A  文章编号:1009-9212(2019)05-0033-04
Synthesis of Methyl 4-chloro-2-(N-methyl-N-phenylsulfamoyl) benzoate
ZHANG En-qian1, WANG Jun-feng2, ZHOU Ying-lei2, XIA Chun-nian1,2* (1. College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; 2. Zhejiang Multinpharma Co., Ltd., Hangzhou 310014, China)
Abstract:Methyl 4-chloro-2-(N-methyl-N-phenylsulfamoyl)benzoate(1) was obtained from 2-amino-4-chlorobenzoic acid by three steps which contain diazotization,esterification and oxidation condensation. And the effects of reaction temperature,mass of the catalyst,molar ratio of raw materials on the reation were investigated. The results of experiment showed that compound 1 was obtained with a yield of more than 62.7% under the optimum conditions. The producing process is easy to control with high yield and low cost, and it is suitable for industrial production. The structure of compound 1 was confirmed with 1H NMR, MS, IR, 13C NMR and melting points.
Key words:tianeptine; intermediate; synthesis; disulfides
作者简介:张恩乾(1992-),男,贵州遵义人,硕士研究生,研究方向:现代药物合成
联 系 人:夏春年,副教授,研究方向为药物合成新工艺(绿色合成,工艺强化)开发及其工业化应用推广(E-mail:xcn77@zjut.edu.cn)。
收稿日期:2019-09-15