第 51 卷第 6 期Vol. 51 No. 6
2021 年 12 月Dec 2021

所属栏目:医药及中间体

Cobicistat 关键中间体的合成工艺研究
王军绪, 门 靖 (西安万隆制药股份有限公司, 陕西 西安 710119)
摘 要:以 2-甲基硫代丙酰胺为原料, 经过 3 步反应得到 Cobicistat 关键中间体(S)-1-(2-异丙基噬哇-4- 基)甲基-1-甲基-3-(2-氧代四氢吠喃-3-基)腺, 反应总收率为 52.7 %[以 2-甲基硫代丙酰胺(2)计]。 中间体及产物结构经 1H NMR、 ESI-MS 表征。 确定了合成中间体 4 的适宜物料比为: n(甲胺盐酸盐):n(3)=2.0: 1.0。 优化了产物 1 的工艺条件: 物料配比为 n(CDI):n(5):n(4)=1.5:1.2:1.0, 反应溶剂为二氯甲炕, 反应时间 10 h。 优化条件下, 产物 1 的收率达 80.8 %。
关键词:Cobicistat 关键中间体 合成工艺
中图分类号:TQ460  文献标识码:A  文章编号:1009-9212(2021)06-0035-04
Synthesis of Key Intermediate of Cobicistat
WANG Jun-xu, MEN Jing (Xi'an Wanlong Pharmaceutical Co.,Ltd., Xi'an 710119, China)
Abstract:(S)-1-(2-Isopropylthiazole-4-yl) methyl-1-methyl-3-(2-oxo-oxolane-3-yl) urea, the key intermediate of Cobicistat, was synthesized from 2-methylthio- propionamide in a three-step reaction, the total yield was 52.7% (base on compound 2). The structures of intermediates and products were characterized by 1H NMR and ESI-MS. The suitable material ratio of the synthetic intermediate 4 is as followings: n (methylamine hydrochloride):n (3)= 2.0 :1.0; The mole ratio of the synthetic product 1 was of n (CDI):n (5) :n (4)=1.5 :1.2 :1.0; the reaction solvent was dichloromethane, the reaction time was 10 h, and the yield of product 1 was up to 80.8% under these reaction conditions.
Key words: Cobicistat; key intermediate; synthetic process
作者简介: 王军绪(1978—),男,陕西三原人,工程师,主要从事药物合成、中试生产及技术管理工作。
收稿日期:2021-07-20