第 41 卷第 6 期 | | Vol. 41 No. 6 | 2011 年 12 月 | Dec 2011 |
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所属栏目:医药及中间体
(6S)2,6-二氨基-4,5,6,7-四氢苯并噻唑的制备 |
尹先清1,孙 芳1,姜能桥2
(1. 长江大学 化学与环境工程学院,湖北 荆州434023;2. 湖北浩信药业有限公司,湖北 鄂州436070) |
摘 要:以2-氨基-6-乙酰氨基-4,5,6,7-四氢苯并噻唑氢溴酸盐为原料,经过水解反应除去乙酰基,然后用L(+)酒石酸成盐、解析拆分后合成了制备普拉克索的重要中间体-(-)-(6S)2,6-二氨基-4,5,6,7-四氢苯并噻唑,总收率>75%,并对合成产物进行1H NMR、IR表征分析。 |
关键词:四氢苯并噻唑;手性化合物;水解反应;合成工艺 |
中图分类号:TQ253.1 文献标识码:A 文章编号:1009-9212(2011)06-0021-03 |
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Preparation of (6S)2,6-Diamino-4,5,6,7-tetrahydrobenzothiazole |
YIN Xian-qing1,SUN Fang2,JIANG Neng-qiao2
(1. College of Chemical and Environmental Engineering,Yangtze University,Jingzhou 434023,China;2. Hubei Haosun Pharmaceutical Co.,Ltd.,Ezhou 436070,China) |
Abstract:(-)-(6S)2,6-Diamino-4,5,6,7-tetrahydrobenzothiazole,an important chiral intermediate for Pramipexole which is a non-ergoline dopamine agonist,was prepared from 2-amino-6-acetamido-4,5,6,7-tetrahydrobenzothiazole hydrobromide and resolved with L(+)tartaric acid. The title compound was obtained in an overall yield of 75% and its structure was confirmed with 1H NMR and IR. |
Key words:tetrahydrobenzothiazole,chiral compound,hydrolysis,synthesis process |
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基金项目:湖北省高校产学研合作重点项目[鄂教科2009(6)]。
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作者简介:尹先清(1962-),男,湖北仙桃人,教授,研究方向:精细化学品的合成及应用。(E-mail:jzyinxq@126.com)
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收稿日期:2011-11-16
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