CN103664961B - 一种西地那非的合成工艺 - Google Patents

一种西地那非的合成工艺 Download PDF

Info

Publication number
CN103664961B
CN103664961B CN201310698852.8A CN201310698852A CN103664961B CN 103664961 B CN103664961 B CN 103664961B CN 201310698852 A CN201310698852 A CN 201310698852A CN 103664961 B CN103664961 B CN 103664961B
Authority
CN
China
Prior art keywords
virga
methyl
preparation
pyrazolo
pyrimidin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310698852.8A
Other languages
English (en)
Other versions
CN103664961A (zh
Inventor
彭超
陶长戈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanjin Group Hunan Sanjin Pharmaceutical Co., Ltd.
Original Assignee
Chengdu Yilukang Medical Technology & Service Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Yilukang Medical Technology & Service Co Ltd filed Critical Chengdu Yilukang Medical Technology & Service Co Ltd
Priority to CN201310698852.8A priority Critical patent/CN103664961B/zh
Publication of CN103664961A publication Critical patent/CN103664961A/zh
Application granted granted Critical
Publication of CN103664961B publication Critical patent/CN103664961B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D487/00Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

本发明公开了一种西地那非的制备方法,所述西地那非制备方法是采用5-(5-卤磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮与N-甲基哌嗪反应,所得产物经浓缩后加水析晶直接得到符合药用标准的纯净产物。与现有公开技术相比,该合成工艺具有反应时间短,反应容易,产物不需纯化,产率高等特点。

Description

一种西地那非的合成工艺
技术领域
本发明涉及一种治疗性功能障碍的原料药—枸橼酸西地那非的制备方法,属于医药技术领域,特别涉及一种西地那非的生产工艺。
背景技术
西地那非(Sildenafil)的化学名为:5-[2-乙氧基-5-(4-甲基哌嗪-1-磺酰基)苯基]-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并[4,3-d]嘧啶-7-酮。该化合物能选择性抑制cGMPPDE,而不抑制cAMPPDE,早期是一种治疗心血管疾病的原料药物,曾在EP-A-0463756中公开。近年来研究发现,西地那非临床上有治疗男性勃起功能障碍的作用,见WO-A-94/28902和CN1124926A;其作用机理是通过对5型磷酸二酯酶(PDE5)的高度选择性抑制,提高环鸟苷酸(cGMP)水平,增强阴茎释放的NO的作用,使海绵体平滑肌松弛,增加阴茎血流量而勃起,其药物制剂被称为喜勃酮或Viagra。
发明内容
本发明的主要目的在于公开一种新的合成西地那非的方法,该方法具有步骤简单,反应无需后处理,直接得到符合药用的产品。
现有技术中酰氯与胺反应生成酰胺的反应的比较困难,而本专利发明人意外发现,磺酰氯可以很容易与铵盐反应得到磺酰胺,且反应收率很高,不产生副反应。
本发明提供以下技术方案:
一种西地那非的制备方法,包括下述步骤:将5-(5-卤磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮与N-甲基哌嗪反应,所得产物经浓缩后加水析晶得西地那非。
进一步,5-(5-卤磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮中的卤磺酰基的卤素为F、Cl、Br、I其中的一种。
进一步,卤磺酰基的卤素为氯。
进一步,将5-(5-氯磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮加入到乙醇中,降温搅拌,至0℃以下,滴加N-甲基哌嗪,反应3小时,反应完毕将反应液浓缩至干,再加水搅拌析晶;抽滤,水洗,真空干燥,得西地那非。
进一步,真空干燥是在五氧化二磷存在的情况下进行的。
与现有技术相比,本发明的有益效果是:通过酰基氯与铵盐的反应得到磺酰胺,反应选择性好,收率高,不产生副反应。
附图说明:
图1-西地那非红外图谱;
图2-西地那非高效液相色谱测试图谱。
具体实施方式
下面结合试验例及具体实施方式对本发明作进一步的详细描述。但不应将此理解为本发明上述主题的范围仅限于以下的实施例,凡基于本发明内容所实现的技术均属于本发明的范围。
实施例1
本实施例涉及的是5-[2-乙氧基-5-(4-甲基哌嗪-1-磺酰基)苯基]-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并[4,3-d]嘧啶-7-酮的制备方法,具体如下:
将化合物5-(5-氯磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮7.5g(0.018mol)加入125ml乙醇中,搅拌降温,缓慢滴加N-甲基哌嗪6g,滴完后反应3小时,反应完毕将反应液减压浓缩至干,加水40ml,搅拌析晶,抽滤,滤饼水洗并在五氧化二磷存在下真空干燥,得标题化合物8.2g,收率92%。
测试例
溴化钾压片测试红外图谱见图1。
高效液相色谱测试,精密称取本品约35mg,置50ml量瓶中,加流动相溶解并稀释至刻度,摇匀,作为供试品溶液。精密量取供试品溶液适量,加流动相制成相当于供试品溶液浓度0.1%溶液,作为对照溶液。照含量测定项下的色谱条件,精密量取对照溶液及供试溶液各20ul,分别注入液相色谱仪,记录色谱图至主成分峰保留时间的3倍。供试品溶液中除溶剂和主成分峰外,如显杂质峰(相对保留时间为1.6~1.8),其峰面积不得大于对照溶液主峰面积的3倍(0.3%),如显其他未知杂质峰,其单个杂质峰面积不得大于对照溶液的主峰面积(0.1%),未知杂质峰峰面积的和不得大于对照溶液主峰面积的3倍(0.3%),总杂质峰峰面积的和不得大于对照溶液主峰面积的5倍(0.5%),测试结果见图2。

Claims (3)

1.一种西地那非的制备方法,包括下述步骤:将5-(5-卤磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮加入到乙醇中,降温搅拌,至0℃以下,滴加N-甲基哌嗪,反应3小时,反应完毕将反应液浓缩至干,再加水搅拌析晶;抽滤,水洗,真空干燥,得西地那非;
其中卤素为F、Cl、Br、I中的一种。
2.根据权利要求1所述的制备方法,其特征在于,5-(5-卤磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮为5-(5-氯磺酰基-2-乙氧基苯基)-1-甲基-3-正丙基-1,6-二氢-7H-吡唑并(4.3-d)嘧啶-7-酮。
3.根据权利要求1所述的制备方法,其特征在于,真空干燥是在五氧化二磷存在的情况下进行的。
CN201310698852.8A 2013-12-18 2013-12-18 一种西地那非的合成工艺 Active CN103664961B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310698852.8A CN103664961B (zh) 2013-12-18 2013-12-18 一种西地那非的合成工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310698852.8A CN103664961B (zh) 2013-12-18 2013-12-18 一种西地那非的合成工艺

Publications (2)

Publication Number Publication Date
CN103664961A CN103664961A (zh) 2014-03-26
CN103664961B true CN103664961B (zh) 2015-12-09

Family

ID=50303827

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310698852.8A Active CN103664961B (zh) 2013-12-18 2013-12-18 一种西地那非的合成工艺

Country Status (1)

Country Link
CN (1) CN103664961B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104370915A (zh) * 2014-11-06 2015-02-25 成都医路康医学技术服务有限公司 枸橼酸西地那非的制备方法
CN104940154A (zh) * 2015-07-23 2015-09-30 青岛蓝盛洋医药生物科技有限责任公司 一种治疗泌尿外科疾病的药物枸橼酸西地那非组合物片剂
CN104940166A (zh) * 2015-07-23 2015-09-30 青岛蓝盛洋医药生物科技有限责任公司 一种治疗男性阳痿的药物枸橼酸西地那非组合物胶囊

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1377884A (zh) * 2001-03-30 2002-11-06 杭州中美华东制药有限公司 制备西地那非的方法
CN1925860A (zh) * 2004-01-05 2007-03-07 特瓦制药工业有限公司 制备西地那非碱及其柠檬酸盐的方法
WO2007141805A2 (en) * 2006-06-05 2007-12-13 Matrix Laboratories Limited Novel process for the preparation of sildenafil citrate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1377884A (zh) * 2001-03-30 2002-11-06 杭州中美华东制药有限公司 制备西地那非的方法
CN1925860A (zh) * 2004-01-05 2007-03-07 特瓦制药工业有限公司 制备西地那非碱及其柠檬酸盐的方法
WO2007141805A2 (en) * 2006-06-05 2007-12-13 Matrix Laboratories Limited Novel process for the preparation of sildenafil citrate

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Palladium-Catalyzed Sulfination of Aryl and Heteroaryl Halides: Direct Access to Sulfones and Sulfonamides;Andrei Shavnya,等;《Organic Letters》;20131120;第15卷(第24期);第6226-6229页 *
Synthesis and Characterization of Potential Impurities of Sildenafil;M. Saravanan,等;《Chemistry & Biology Interface》;20111231;第1卷(第2期);第177-184页 *
磷酸二酯酶抑制剂西地那非的合成;宁奇,张秀平;《中国医药工业杂志》;20001231;第31卷(第4期);第145-147页 *

Also Published As

Publication number Publication date
CN103664961A (zh) 2014-03-26

Similar Documents

Publication Publication Date Title
CN103333942B (zh) 左旋吡喹酮的合成方法
CN101863784B (zh) 一种甜菜碱、甜菜碱盐酸盐的制备提取方法
CN103664961B (zh) 一种西地那非的合成工艺
CN102503845A (zh) 一种dl-赖氨酸阿司匹林盐的制备方法及其应用
CN104370915A (zh) 枸橼酸西地那非的制备方法
CN102702232A (zh) 一种精制头孢孟多酯钠的方法
US8383808B2 (en) Method to prepare D-glucosamine hydrochloride
CN101407478A (zh) 肌酸盐酸盐的制备方法
CN102285907B (zh) 氨曲南单环母核的制备方法
CN103965191A (zh) 一种6-溴咪唑并[1,2-a]吡啶-3-甲酸的合成方法
CN106699681A (zh) 去甲氨噻肟酸乙酯的合成方法
CN103113294A (zh) 瑞巴派特的合成方法
CN103923117B (zh) 一种有生物活性的希夫碱氧钒配合物晶体的制备方法
CN104774158A (zh) 门冬氨酸鸟氨酸的一种新的制备方法
CN104356043A (zh) 一种制备5-(2-氟苯基)-1h-吡咯-3-甲醛的方法
CN103319436A (zh) 注射级乙酰唑胺钠的制备与精制方法及其冻干制剂
CN103435610A (zh) 一种咪唑并[1,2-a]吡啶类化合物的制备方法
KR102120190B1 (ko) 4-아미노-2,5-디메톡시피리미딘으로부터의 2-아미노-5,8-디메톡시[1,2,4]트리아졸로[1,5-c]피리미딘의 개선된 제조 방법
CN101289454B (zh) 2-氧-2,4,5,6,7,7α-六氢噻吩并[3,2-c]吡啶的制备方法
CN103193712B (zh) 一种l-肌肽的制备方法
RU2011114776A (ru) Этил 1,6-диарил-4-ароил-3-гидрокси-2-оксо-8-фенил-1,7-диазаспиро [4.4]нона-3,6,8-триен-9-карбоксилаты и способ их получения
CN106478520B (zh) 一种马西替坦杂质标准品的合成方法
CN105061434B (zh) 一种西他列汀磷酸盐的制备方法
CN102977104A (zh) 2,4-二氯-7-氢-吡咯并(2,3)嘧啶的合成
CN104693177A (zh) 一种埃索美拉唑钠的精制方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170518

Address after: 610041, Sichuan, Chengdu province Wuhou District 9 Bridge Street wash two district

Patentee after: Chengdu Jing Qin excellent drug development Co., Ltd.

Address before: Science Park high tech Zone of Chengdu South Road, No. 88 610041 Sichuan province Tianfu Life Science Park building B6 No. 9

Patentee before: Chengdu Yilukang Medical Technology & Service Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180315

Address after: 610000 floor, building B6, Tianfu Life Science & Technology Park, No. 88, South Park Road, high tech Zone, Sichuan, Chengdu, China

Patentee after: Chengdu Yilukang Medical Technology & Service Co., Ltd.

Address before: 610041, Sichuan, Chengdu province Wuhou District 9 Bridge Street wash two district

Patentee before: Chengdu Jing Qin excellent drug development Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200114

Address after: 415000 NO.320, Deshan Avenue, Chongde neighborhood committee, Deshan Town, Changde economic and Technological Development Zone, Changde City, Hunan Province

Patentee after: Sanjin Group Hunan Sanjin Pharmaceutical Co., Ltd.

Address before: 610000 floor, building B6, Tianfu Life Science & Technology Park, No. 88, South Park Road, high tech Zone, Sichuan, Chengdu, China

Patentee before: Chengdu Yilukang Medical Technology & Service Co., Ltd.

TR01 Transfer of patent right