CN103508932B - 糖尿病药物格列美脲的合成方法 - Google Patents

糖尿病药物格列美脲的合成方法 Download PDF

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Publication number
CN103508932B
CN103508932B CN201310431326.5A CN201310431326A CN103508932B CN 103508932 B CN103508932 B CN 103508932B CN 201310431326 A CN201310431326 A CN 201310431326A CN 103508932 B CN103508932 B CN 103508932B
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compound
glimepiride
reaction
solvent
synthesizing
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CN103508932A (zh
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王德峰
俞健钧
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JIANGSU DEFENG PHARMACEUTICAL CO Ltd
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JIANGSU DEFENG PHARMACEUTICAL CO Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/30Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D207/34Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D207/36Oxygen or sulfur atoms
    • C07D207/382-Pyrrolones

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrrole Compounds (AREA)
  • Hydrogenated Pyridines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

本发明公开了一种糖尿病药物格列美脲的合成方法,其创新点在于:化合物3(原料名称:N-4-[2-(3-乙基-4-甲基-2-氧化-3-吡咯啉-1-甲酰胺基)乙基]-苯磺酰胺)和化合物2(名称:反对甲基环己基胺)在低温下通光气反应,经过后处理,丙酮精制得到成品。本发明工艺简单,易操作,产品收率高。

Description

糖尿病药物格列美脲的合成方法
技术领域
本发明涉及糖尿病药物格列美脲的合成方法,属于化合物合成技术领域。
背景技术
格列美脲是第三代磺酰脲类口服降血糖药,其降血糖作用的主要机理是刺激胰岛β细胞分泌胰岛素,部分提高周围组织对胰岛素的敏感性。本品与胰岛素受体结合及离解的速度较格列本脲为快,较少引起较重低血糖。口服给药后,格列美脲100%在胃肠道吸收。2-3小时血药浓度达到峰值(Cmax),蛋白结合率大于99.5%。格列美脲通过氧化生物转化作用完全代谢,主要代谢产物是环已基羟甲基衍生物(M1)和羧化衍生物(M2),M1经一个或几个细胞溶质酶作用而进一步代谢为M2,M1在动物模型上与它的母体相比有大约1/3的药理活性。而M2没有此活性。
发明内容
本发明的目的在于针对现有技术中的不足,提供一种工艺简单,安全可靠的苯磺酰胺简便合成糖尿病药物格列美脲的方法。
为解决上述技术问题,本发明采用如下技术方案实现:
将化合物3(原料名称:N-4-[2-(3-乙基-4-甲基-2-氧化-3-吡咯啉-1-甲酰胺基)乙基] -苯磺酰胺)和化合物2(名称:反对甲基环己基胺)和溶剂加入大反应器中,控制温度-40~50℃,优选-20~5℃,通入光气,开始反应,反应2~10小时后,点板到原料化合物3消失,冷却结晶搅拌,过滤后精制处理,得到合格产品,反应式为:
所述化合物3、化合物2、光气和溶剂的摩尔比为1:0.8~1.5:0.8~1.5:2~50。
本发明的有益效果:本发明工艺简单,安全易操作,产品收率高。
具体实施方式
下面结合具体实施例对本发明的技术方案作详细说明。
实施例1
在3000毫升的三口烧瓶中加入1000毫升醋酸乙酯,中间体3(0.6mol)211克,中间体2(0.6mol)66.8克,控制温度-10到0℃通入计量的光气60克(1mol),大约2小时通完,通完后继续反应3小时,然后升温到室温搅拌2小时到反应结束,浓缩去溶剂400毫升醋酸乙酯,冷却后过滤,丙酮精制得到目标产品,白色固体230克(HPLC  99.2%)。
实施例2
在3000毫升的三口烧瓶中加入1000毫升氯仿,中间体3(0.6mol)211克,中间体2(0.6mol)66.8克,控制温度-10到0℃通入计量的光气60克(1mol),大约2小时通完,通完后继续反应3小时,然后升温到室温搅拌2小时到反应结束,浓缩去溶剂400毫升醋酸乙酯,冷却后过滤,丙酮精制得到目标产品,白色固体218克(HPLC  99.1%)。
上述实施例仅用以说明本发明的技术方案,而非对本发明的构思和保护范围进行限定,本发明的普通技术人员对本发明的技术方案进行修改或者等同替换,而不脱离技术方案的宗旨和范围,其均应涵盖在本发明的权利要求范围中。

Claims (2)

1.糖尿病药物格列美脲的合成方法,其特征在于:在低温下将化合物3和化合物2在溶剂中搅拌混合,冷却,通入光气,开始反应,TLC分析原料消失,经过后处理得到粗品,溶剂精制后得到产品,反应式:                                               
上述溶剂是醋酸乙酯或氯仿,反应温度-40℃~50℃
上述反应中化合物3、化合物2、光气和溶剂的摩尔比为1:0.8~1.5:0.8~1.5:2~50。
2.根据权利要求1所述的糖尿病药物格列美脲的合成方法,其特征在于:所述反应温度为-20℃~5℃。
CN201310431326.5A 2013-09-22 2013-09-22 糖尿病药物格列美脲的合成方法 Expired - Fee Related CN103508932B (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1109872A (zh) * 1993-12-30 1995-10-11 赫彻斯特股份公司 取代苯磺酰脲和一硫脲,其制备方法及其药物制剂用途
WO2004073585A2 (en) * 2003-02-21 2004-09-02 Zentiva, A. S. Methode of manufacturing glimepiride and the respective intermediate
CN101671290A (zh) * 2009-10-11 2010-03-17 沧州那瑞化学科技有限公司 格列美脲原料药的制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1109872A (zh) * 1993-12-30 1995-10-11 赫彻斯特股份公司 取代苯磺酰脲和一硫脲,其制备方法及其药物制剂用途
WO2004073585A2 (en) * 2003-02-21 2004-09-02 Zentiva, A. S. Methode of manufacturing glimepiride and the respective intermediate
CN101671290A (zh) * 2009-10-11 2010-03-17 沧州那瑞化学科技有限公司 格列美脲原料药的制备方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
三光气法合成降糖药格列美脲;刘占科等;《精细化工中间体》;20060830(第03期);第17页左栏2.2.2和右栏2.2.5,第17-18页3.1.2 *
降血糖新药――格列美脲合成工艺研究;邓勇等;《中国药物化学杂志》;20000620(第02期);第134-137页 *

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