CN103992273A - 一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法 - Google Patents

一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法 Download PDF

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CN103992273A
CN103992273A CN201410157851.7A CN201410157851A CN103992273A CN 103992273 A CN103992273 A CN 103992273A CN 201410157851 A CN201410157851 A CN 201410157851A CN 103992273 A CN103992273 A CN 103992273A
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synthetic method
celebrex
steroidal anti
celecoxib
inflammatory
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CN103992273B (zh
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王小龙
张大成
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Nanjing University of Chinese Medicine
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Nanjing University of Chinese Medicine
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/12Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms

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  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

本发明涉及一种非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法,该发明以化合物一和化合物二为原料,在硫酸铜和抗坏血酸共同催化下,分子间通过[3+2]偶极环加成反应合成塞来昔布分子的吡唑坏,从而合成了塞来昔布(见图1)。该方法操作简单,条件温和,收率较高,是一种有效合成塞来昔布的新方法。

Description

一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法
技术领域
本发明涉及医药化工领域,具体涉及一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法。 
背景技术
Celebrex(塞来昔布)是1999年通过美国国家食品与药品监督管理局(FDA)的批准正式上市,标志着全球首款选择性非甾体抗炎镇痛药诞生。塞来昔布为新一代选择性COX-2抑制剂,只抑制COX-2,不影响COX-1功能,因此具有保护胃肠道作用的COX-1合成产物生成不会被抑制,成功解决了传统非甾体抗炎镇痛药胃肠损伤方面的百年难题,被喻为“里程碑式的突破”。 
目前关于塞来昔布的合成方法主要有US5521207的合成方法(方程式如图1所示)和WO2003024400(方程式如图2所示)等。 
附图说明
图1是US5521207中塞来昔布合成方法方程式。 
图2是WO2003024400中塞来昔布合成方法方程式。 
图3是本发明中设计的一种塞来昔布合成方法方程式。 
具体操作实施 
室温下将化合物一(1.0mmol)和化合物二(1.0mmol)溶于乙腈(3mL)中后加入水(1.0mL),接下来加入10%硫酸铜溶液(0.02mL,0.1mmol),20%抗坏血酸溶液(0.02mL,0.2mmol),和醋酸钠(382mg,4.0mmol)。混合溶液加热于45℃反应1小时。将反应液减压旋干后加入甲醇(1mL)和氨水(5mL),用乙酸乙酯萃取,干燥,旋干过柱分离得产物(方程式如图3所示)。 

Claims (9)

1.一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法。其合成方法是以化合物一和化合物二(见图一)为原料,首先溶解于相应的溶剂中,再加入适宜量的硫酸铜,抗坏血酸和醋酸钠水溶液。将混合溶液加热反应数小时,后处理得到目标产物。
2.根据权利要求1所述的一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法特征在于:其合成方法为化合物一和化合物二(见图一)为原料摩尔比为1.0∶0.8;1.0∶0.9;1.0∶1.0;1.0∶1.1;1.0∶1.2等,其较优条件为乙1.0∶1.0。
3.根据权利要求1所述的一种选择性非甾体抗炎镇痛约Celebrex(塞来昔布)的合成方法特征在于:其所用的相应溶剂可以是乙腈,丙酮.1,4-二氧六环,四氢呋喃等,其较优条件为乙腈。
4.根掘权利要求1所述的一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法特征在于:其所用水溶液中水质量与所用有机溶剂质量比例可以是1∶5;1∶4;1∶3;1∶2;1∶1等,其较优条件为1∶3。
5.根据权利要求1所述的一种选择性非甾体抗炎镇痛约Celebrex(塞来昔布)的合成方法特征在于:其以硫酸铜,抗坏血酸为催化剂,醋酸钠为相应碱。
6.根据权利要求5所述,硫酸铜和抗坏血酸的用量为10%和20%为较优条件。
7.根据权利要求5所述.醋酸钠的用量可以是1当量,2当量,3当量.4当量,5当量等,其较优条件为4当量。
8.根掘权利要求1所述的一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法特征在于:其所维持温度可以是0-100摄氏度,其较优条件为45摄氏度。
9.根据权利要求1所述的一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法特征在于:其反应时间为0.5,1,1.5,2,3小时,其较优反应时间为1小时。
CN201410157851.7A 2014-04-18 2014-04-18 一种选择性非甾体抗炎镇痛药Celebrex(塞来昔布)的合成方法 Active CN103992273B (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5521207A (en) * 1993-11-30 1996-05-28 G.D. Searle & Co. Substituted pyrazolyl benzenesulfonamide for the treatment of inflammation
WO2003024400A2 (en) * 2001-09-18 2003-03-27 Onconova Therapeutics, Inc. Process for the preparation of 1,5-diarylpyrazoles
EP2246332A1 (en) * 2009-04-22 2010-11-03 The Ohio State University Research Foundation Pyrazole derivatives as anti-francisella agents
CN102558056A (zh) * 2012-01-06 2012-07-11 湖南方盛制药股份有限公司 塞来昔布及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5521207A (en) * 1993-11-30 1996-05-28 G.D. Searle & Co. Substituted pyrazolyl benzenesulfonamide for the treatment of inflammation
WO2003024400A2 (en) * 2001-09-18 2003-03-27 Onconova Therapeutics, Inc. Process for the preparation of 1,5-diarylpyrazoles
EP2246332A1 (en) * 2009-04-22 2010-11-03 The Ohio State University Research Foundation Pyrazole derivatives as anti-francisella agents
CN102558056A (zh) * 2012-01-06 2012-07-11 湖南方盛制药股份有限公司 塞来昔布及其制备方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
LYNETTE M. OH等: ""Synthesis of celecoxib via 1,3-dipolar cycloaddition"", 《TETRAHEDRON LETTERS》 *
MA CHAOWEI等: ""Copper(I)-Catalyzed Synthesis of Pyrazoles from Phenylhydrazones and Dialkyl Ethylenedicarboxylates in the Presence of Bases"", 《SYNLETT》 *
SUN AIXUE等: ""A new efficient synthesis of pyrazoles from hydrazonoyl halides and β -oxophosphonates"", 《TETRAHEDRON LETTERS》 *
TATSUO OIDA等: ""The Cycloaddition of Nitrilimines with 1,2-Dibenzoylethylenes"", 《BULL. CHEM. SOC. JPN.》 *

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