CN114181138B - 一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法 - Google Patents

一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法 Download PDF

Info

Publication number
CN114181138B
CN114181138B CN202111593774.6A CN202111593774A CN114181138B CN 114181138 B CN114181138 B CN 114181138B CN 202111593774 A CN202111593774 A CN 202111593774A CN 114181138 B CN114181138 B CN 114181138B
Authority
CN
China
Prior art keywords
nitropyridine
butyramide
nitropyridin
derivative
aminoacetal
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
CN202111593774.6A
Other languages
English (en)
Other versions
CN114181138A (zh
Inventor
潘刚
倪妮
郭刚
孙晓雨
单志民
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.)
Beijing Mediking Biopharm Co ltd
Dalian Wanfu Pharmaceutical Co ltd
Original Assignee
Beijing Mediking Biopharm Co ltd
Dalian Wanfu Pharmaceutical 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 Beijing Mediking Biopharm Co ltd, Dalian Wanfu Pharmaceutical Co ltd filed Critical Beijing Mediking Biopharm Co ltd
Priority to CN202111593774.6A priority Critical patent/CN114181138B/zh
Publication of CN114181138A publication Critical patent/CN114181138A/zh
Application granted granted Critical
Publication of CN114181138B publication Critical patent/CN114181138B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
    • C07D213/61Halogen atoms or nitro radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D413/00Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/06Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法,其属于医药中间体技术领域。该方法以4‑(5‑硝基吡啶‑2‑基)丁酸为原料,通过与氨基乙缩醛二甲醇的缩合反应,合成重要中间体N‑(2,2‑二甲氧基乙基)‑4‑(5‑硝基吡啶‑2‑基)丁酰胺,再经过自身环合,制备普克鲁胺中间体中间体2‑(3‑(5‑硝基吡啶‑2‑丙基)噁唑。该路线安全系数高,反应条件温和,反应选择性高。该方法几乎无环境污染,后处理简单;操作安全。该方法具有产率高,成本低,安全系数高,节省能源等诸多优点,符合绿色反应的现代化工生产要求。

Description

一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法
技术领域
本发明涉及研发一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑的方法,其属于医药中间体技术领域。
背景技术
雄激素受体拮抗剂(AR Antagonist)是现阶段控制去势失效的前列腺癌首选的药物治疗方法之一。普克鲁胺是新一代AR(雌激素受体)拮抗剂用于治疗去势抵抗性前列腺癌,为十三五“重大新药创制”专项的产品。
同时普克鲁胺对新冠肺炎的轻重症状均有疗效,有望成为轻、中、重症新冠患者全治疗周期的有效治疗药物。
基于以上背景,研发一种区别于原工艺中制备中间体2-(3-(5-硝基吡啶-2-丙基)噁唑的创新型工艺,该工艺以4-(5-硝基吡啶-2-基)丁酸为原料,通过与氨基乙缩醛二甲醇的缩合反应,合成重要中间体N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺,再经过自身环合,制备普克鲁胺中间体中间体2-(3-(5-硝基吡啶-2-丙基)噁唑。
发明内容
本发明的目是在发明一条新路线合成2-(3-(5-硝基吡啶-2-丙基)噁唑,其中涉及到一个重要创新型中间体N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺;该化合物以4-(5-硝基吡啶-2-基)丁酸为原料,通过与氨基乙缩醛二甲醇的缩合反应制备,其中氨基乙缩醛二甲醇可以用氨基乙缩醛二乙醇代替。反应温度在15~60℃,其中在20`40℃下反应效果最佳。
在N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺环合制备普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑时,采用多聚磷酸为脱水环合剂,其中多聚磷酸也可以由浓硫酸,五氧化二磷,氯化亚砜,五氯化磷代替。其中多聚磷酸具有反应彻底,危险系数低等优点。反应温度在60~120℃,其中80~90℃,反应效果最佳。
本发明采用合成一种新型重要中间体,来合成普克鲁胺中间体中间体2-(3-(5-硝基吡啶-2-丙基)噁唑的路线,其反应危险系数低,反应选择性高,转化率高,产物不需要纯化,并且符合绿色现代化生产要求。
本发明所采用的技术方案是:
一种创新高效合成普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑的方法,2-(3-(5-硝基吡啶-2-丙基)噁唑的结构式如下:
该方法包括如下步骤:
(1)在三口烧瓶里,依次加入乙酸乙酯,4-(5-硝基吡啶-2-基)丁酸,HOBT(1-羟基苯并三唑),DCC(二环己基二亚胺),控制温度0~15℃,滴加氨基乙缩醛二甲醇,滴加完,再滴加三乙胺,20℃反应3h,反映完毕,过滤反应液,滤液用碳酸氢钠水溶液洗涤一次,饱和食盐水洗涤一次,有机相经过氧化铝柱后,浓缩至无馏分,甲基叔丁基醚结晶,得到重要中间体N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺。
(2)分别将多聚磷酸,中间体N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺加入三口瓶,升温至90℃,反应3h后,降至20~25℃,向反应釜中加入水跟乙酸乙酯,分层,水相用乙酸乙酯萃取一次,合并有机层,浓缩有机层至无馏分,加入正庚烷结晶,过滤,干燥得到得到普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑。
本发明的有益效果是:2-(3-(5-硝基吡啶-2-丙基)噁唑作为普克鲁胺的中间体,同时普克鲁胺对新冠肺炎的轻重型均有效果,医疗前景可期。相较于原工艺,该路线安全系数高,反应条件温和,反应选择性高,收率得到了很大的提高。
该路线为创新型合成普克鲁胺中间体,该工艺几乎无环境污染,后处理简单;操作安全。采用这条合成路线,有产率高,成本低,安全系数高,节省能源等诸多优点,符合绿色反应的现代化工生产要求。
附图说明
图1是实施例2中产物的液相谱图。
具体实施方式
下面通过实施例对本发明作进一步说明,目的在于更好理解本发明的内容。因此所举实例并不限制本发明的保护范围。
实施例1:
N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺的合成
(1)在2000mL口烧瓶里,依次加入乙酸乙酯(600mL),4-(5-硝基吡啶-2-基)丁酸(200g 0.95mol),HOBT(1-羟基苯并三唑)(6.4g 0.047mol),DCC(二环己基碳二亚胺)(220g1.07mol),控制温度0~15℃,滴加氨基乙缩醛二甲醇(100g 0.95mol),滴加完,再滴加三乙胺(160g 1.51mol),20℃反应3h,反应完毕,过滤反应液,滤液用200mL 1体积5%碳酸氢钠水溶液洗涤一次,200mL1体积饱和食盐水洗涤一次,有机相经过氧化铝柱后,浓缩至无馏分,加入甲基叔丁基醚(600mL)结晶,过滤,干燥,得到得到重要中间体N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺272g,收率96.1%。
2-(3-(5-硝基吡啶-2-丙基)噁唑的合成
分别将多聚磷酸(1088g),中间体N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺(272g,0.915mol)加入三口瓶,升温至90℃,反应3h后,降至20~25℃,向反应釜中加入水(500g)跟乙酸乙酯(500g),分层,水相用乙酸乙酯(500g)萃取一次,合并有机层,浓缩有机层至无馏分,加入正庚烷(600mL),搅拌1h,降温至20~25℃,搅拌1小时,过滤,干燥得到得到普克鲁胺中间体得到普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑200g,纯度99.8%,收率93.7%。
实施例2
N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺的合成
(1)在2000mL口烧瓶里,依次加入乙酸乙酯(600mL),4-(5-硝基吡啶-2-基)丁酸(200g 0.95mol),HOBT(1-羟基苯并三唑)(6.4g 0.047mol),DCC(二环己基碳二亚胺)(220g1.07mol),控制温度0~15℃,滴加氨基乙缩醛二乙醇(127g 0.95mol),滴加完,再滴加三乙胺(160g 1.51mol),20℃反应3h,反应完毕,过滤反应液,滤液用200mL1体积碳酸氢钠水溶液洗涤一次,200mL 1体积饱和食盐水洗涤一次,有机相经过氧化铝柱后,浓缩至无馏分,加入甲基叔丁基醚(600mL)结晶,过滤,干燥,得到得到重要中间体N-(2,2-二乙氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺295g,收率95.3%。
2-(3-(5-硝基吡啶-2-丙基)噁唑的合成
分别将多聚磷酸(1078g),中间体N-(2,2-二乙氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺(295g,0.907mol)加入三口瓶,升温至90℃,反应3h后,降至20~25℃,向反应釜中加入水(500g)跟乙酸乙酯(500g),分层,水相用乙酸乙酯(500g)萃取一次,合并有机层,浓缩有机层至无馏分,加入正庚烷(600mL),搅拌1h,降温至20~25℃,搅拌1小时,过滤,干燥得到得到普克鲁胺中间体得到普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑198g,纯度99.8%,收率93.6%。
该新工艺起始原料对比,转化率及收率表
表1.新工艺产率收率衡算表
由上表可知,该工艺生产无论采用氨基乙缩醛二甲醇,还是氨基乙缩醛二乙醇,最终产品的转化率都很高,产品质量相同,该路线成熟稳定,符合医药要求。
该条路线,具有较高安全性和环保性后处理相对较容易,工艺过程绿色环保。

Claims (3)

1.一种硝基吡啶丁酰胺的衍生物,其特征在于,该衍生物的结构为:
其中,R为甲基或乙基。
2.根据权利要求1所述的一种硝基吡啶丁酰胺的衍生物的制备方法,其特征在于:
在三口烧瓶里,依次加入乙酸乙酯、4-(5-硝基吡啶-2-基)丁酸、1-羟基苯并三唑、二环己基碳二亚胺,所述4-(5-硝基吡啶-2-基)丁酸与二环己基碳二亚胺的摩尔比为1:1.1-1.3;
控制温度0~15℃,滴加氨基乙缩醛二甲醇或氨基乙缩醛二乙醇,滴加完,再滴加三乙胺,20-30℃反应1-4h;所述4-(5-硝基吡啶-2-基)丁酸与氨基乙缩醛二甲醇或氨基乙缩醛二乙醇的摩尔比为1:1-1.2;反应完毕,过滤,滤液分别用碳酸氢钠水溶液、饱和食盐水洗涤,有机相过柱,浓缩,甲基叔丁基醚结晶,得到硝基吡啶丁酰胺的衍生物。
3.根据权利要求1所述的一种硝基吡啶丁酰胺的衍生物的用于制备普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑的方法,其特征在于:制备方法如下:
将多聚磷酸与N-(2,2-二甲氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺或N-(2,2-二乙氧基乙基)-4-(5-硝基吡啶-2-基)丁酰胺按质量比为3.5-5:1加入三口瓶,升温至90-100℃,反应1-3h,降至20~25℃;
向反应釜中加入水跟乙酸乙酯,分层,萃取,浓缩有机层至无馏分,加入正庚烷结晶,过滤、干燥,得到普克鲁胺中间体2-(3-(5-硝基吡啶-2-丙基)噁唑。
CN202111593774.6A 2021-12-23 2021-12-23 一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法 Active CN114181138B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111593774.6A CN114181138B (zh) 2021-12-23 2021-12-23 一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111593774.6A CN114181138B (zh) 2021-12-23 2021-12-23 一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法

Publications (2)

Publication Number Publication Date
CN114181138A CN114181138A (zh) 2022-03-15
CN114181138B true CN114181138B (zh) 2023-09-05

Family

ID=80606016

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111593774.6A Active CN114181138B (zh) 2021-12-23 2021-12-23 一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法

Country Status (1)

Country Link
CN (1) CN114181138B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115286623B (zh) * 2022-07-15 2024-09-10 深圳湾实验室 普克鲁胺的合成方法和其中间体

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103608333A (zh) * 2011-03-10 2014-02-26 苏州开拓药业有限公司 雄激素受体拮抗剂及其用途
CN107987055A (zh) * 2017-12-19 2018-05-04 刘秀云 硫代咪唑二酮类雄激素受体拮抗剂及其用途
CN113717166A (zh) * 2021-03-12 2021-11-30 杭州科巢生物科技有限公司 一种普克鲁胺的合成方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103608333A (zh) * 2011-03-10 2014-02-26 苏州开拓药业有限公司 雄激素受体拮抗剂及其用途
CN107987055A (zh) * 2017-12-19 2018-05-04 刘秀云 硫代咪唑二酮类雄激素受体拮抗剂及其用途
CN113717166A (zh) * 2021-03-12 2021-11-30 杭州科巢生物科技有限公司 一种普克鲁胺的合成方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Synthesis of novel tetrahydroisoquinoline bronchodilators;Maria F. Dalence-Guzmán 等;《Bioorganic & Medicinal Chemistry Letters》;第20卷;4999-5003 *

Also Published As

Publication number Publication date
CN114181138A (zh) 2022-03-15

Similar Documents

Publication Publication Date Title
CN107365275B (zh) 高纯度的赛乐西帕
CN104945299B (zh) 一种维格列汀的高效合成方法
CN109705013B (zh) 一种1-(4-甲基苄基)-3-氨基-4-甲硒基马来酰亚胺化合物及制备方法
CN114181138B (zh) 一种硝基吡啶丁酰胺的衍生物制备普克鲁胺中间体的方法
CN107337675A (zh) 一种制备替格瑞洛的改进方法
CN107652228B (zh) 抗肾纤维化药物1-(取代苄基)-5-三氟甲基-2(1h)-吡啶酮盐酸盐的合成方法
AU2016232270B2 (en) Method for producing (4S)-4-[4-cyano-2-(methylsulfonyl)phenyl]-3,6-dimethyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydro pyrimidine-5-carbonitrile
CN115010707A (zh) 喹啉并吡咯衍生物的制备方法
CN103864802A (zh) 高纯度马来酸阿塞那平的制备方法
CN108947919A (zh) 一种抗痛风药Lesinurad的新型制备方法及其关键中间体
CN117143095A (zh) 一种6-溴吡唑并[1,5-a]吡啶-3-羧酸及其制备方法
KR100990046B1 (ko) 신규한 몬테루카스트 4-할로 벤질아민염 및 이를 이용한 몬테루카스트 나트륨염의 제조방법
CN107936045A (zh) 一种高纯度氟比洛芬已知杂质的制备方法
TWI777079B (zh) 稠合三環γ-胺基酸衍生物的製備方法及其中間體
CN112125889A (zh) 一种7-溴-2-(1-甲基-1h-吡唑-4-基)喹喔啉的制备方法
CN105801577B (zh) 一种多氟甲基取代的吡咯[3,2‑c]并喹啉类化合物的制备方法
CN113307810B (zh) 一种2,4氟-吡咯[1,2]嘧啶-7甲腈的合成方法及应用
CN104151299B (zh) 化合物、晶型化合物及其制备方法
CN111100042A (zh) 一种2-甲氧基-5-磺酰胺基苯甲酸的制备方法
CN110294734A (zh) 一种2-氨基噻吩-3, 4-二羧酸衍生物的制备方法
CN111320588B (zh) 一种纯化Lesinurad的方法
CN111187232B (zh) 一种一锅法合成盐酸普拉克索关键中间体的方法
CN104557889B (zh) 拉呋替丁异构体的制备方法
TWI845992B (zh) 一種b肝病毒核衣殼抑制劑的製備方法
CN113512086B (zh) 一种制备螺内酯中间体坎利酮的方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant