第 43 卷第 6 期Vol. 43 No. 6
2013 年 12 月Dec 2013

所属栏目:医药及中间体

1-甲基-1H-吡唑-5-硼酸频哪醇酯的合成
张玉娟,邢 磊,陈国良 (沈阳药科大学 基于靶点的药物设计与研究教育部重点实验室,辽宁 沈阳 110016)
摘 要:以1H-吡唑为原料,经磷酸三甲酯甲基化,正丁基锂锂化后与硼酸三甲酯硼酸化,再与频哪醇缩合得到1-甲基1H-吡唑-5-硼酸频哪醇酯,3步反应的总收率为27.4%。优化了中间体3 的合成和纯化。目标化合物经1H NMR结构确证。
关键词:1-甲基-1H-吡唑-5-硼酸频哪醇酯;合成;频哪醇
中图分类号:TQ463,0624.32  文献标识码:A  文章编号:1009-9212(2013)06-0027-02
Synthesis of Pinacol 1-Methyl-1H-pyrazole-5-boronate
ZHANG Yu-juan,XING Lei,CHEN Guo-liang (Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education,Shenyang Pharmaceutical University,Shenyang 110016,China)
Abstract:1-Alkyl-pyrazole acid is an important intermediate for the synthesis of many biologically active compounds. The target compound was prepared in overall yield of 27.4% starting from 1H-pyrazole via methylation with trimethyl phosphate,converting into boronic acids with trimethyl borate after reaction with n-butyl lithium,and condensation with pinacol. The process conditions were optimized for the synthesis and purification of intermediate 3. The structure of target compound was characterized by 1H NMR.
Key words:pinacol 1-methyl-1H-pyrazole boronate;synthesis;pinacol
作者简介:张玉娟(1989-),女,四川广安人,硕士研究生,主要从事药物合成和工艺研究(E-mail:nicolezyj@163.com)
联 系 人:陈国良,教授,博士生导师,主要从事抗癌药物的研究。(E-mail:guoliang222@gmail.com)
收稿日期: 2013-11-2