CN110818619B - 一种n-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法 - Google Patents

一种n-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法 Download PDF

Info

Publication number
CN110818619B
CN110818619B CN201911279772.2A CN201911279772A CN110818619B CN 110818619 B CN110818619 B CN 110818619B CN 201911279772 A CN201911279772 A CN 201911279772A CN 110818619 B CN110818619 B CN 110818619B
Authority
CN
China
Prior art keywords
chloro
pyridylmethoxy
phenyl
cyanoacetamide
reaction
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
CN201911279772.2A
Other languages
English (en)
Other versions
CN110818619A (zh
Inventor
张�杰
朱义胜
杨铎
吕红超
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.)
Shandong Baoyuan Pharmaceutical Co ltd
Original Assignee
SHANDONG BOYUAN 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 SHANDONG BOYUAN PHARMACEUTICAL CO Ltd filed Critical SHANDONG BOYUAN PHARMACEUTICAL CO Ltd
Priority to CN201911279772.2A priority Critical patent/CN110818619B/zh
Publication of CN110818619A publication Critical patent/CN110818619A/zh
Application granted granted Critical
Publication of CN110818619B publication Critical patent/CN110818619B/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
    • C07D213/24Heterocyclic 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 substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/28Radicals substituted by singly-bound oxygen or sulphur atoms
    • C07D213/30Oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)

Abstract

本发明公开了一种N‑(3‑氯‑4‑(2‑吡啶甲氧基)苯基)‑2氰基乙酰胺的合成方法。该方法首先在碱性条件下,2‑氯‑4‑溴苯酚与2‑氯甲基吡啶盐酸盐反应生成化合物Ⅲ;在四氟硼酸亚硝催化下,化合物Ⅲ和丙二腈反应,生成N‑(3‑氯‑4‑(2‑吡啶甲氧基)苯基)‑2‑氰基乙酰胺。该方法合成路线简单,反应条件温和,产品收率高,易于工业化生产。

Description

一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成 方法
技术领域
本发明涉及一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法,属于药物合成技术领域。
背景技术
N-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺,结构式如下所示,它是合成3-氰基-喹啉的一种起始原料(参见US20060270669、CN101180269)。
Figure BDA0002316402220000011
WO2006127205介绍了一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法,其合成路线如下所示。此方法在合成中用到了钯碳氢化还原,在实际生产中存在一定的安全隐患,最后一步反应在高温160~180℃下进行,不仅不宜于安全生产,而且对设备有一定的特殊要求,且三步反应总收率在50%左右,收率较低。
Figure BDA0002316402220000012
发明内容
针对上述问题,本发明提供了一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2- 氰基乙酰胺的合成方法。本发明以2-氯-4-溴苯酚与2-氯甲基吡啶盐酸盐为起始原料,首先在碱性条件下生成化合物Ⅲ,然在四氟硼酸亚硝催化下,再与丙二腈反应,得到化合物N-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺。该方法合成路线简单,反应条件温和,产品收率高,易于工业化生产。
本发明的技术方案是:一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的合成方法,其特征是,
1)在碱性条件下,2-氯-4-溴苯酚(化合物Ⅰ)与2-氯甲基吡啶盐酸盐(化合物Ⅱ)反应生成3-氯-4-(2-吡啶甲氧基)溴苯(化合物Ⅲ);
2)在四氟硼酸亚硝(BF4NO)催化下,3-氯-4-(2-吡啶甲氧基)溴苯和丙二腈反应,生成N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺(化合物Ⅴ)。
合成路线如下所示:
Figure BDA0002316402220000021
优选的,所述步骤1)的碱性条件采用的碱为氢氧化钠、氢氧化钾、氢氧化锂,优选氢氧化钠。
优选的,所述步骤1)的反应温度范围是20~80℃,优选40~55℃。
优选的,所述步骤1)的所述的反应溶剂为乙腈、丙酮、DMF、DMSO、二氧六环,优选乙腈。
优选的,所述步骤2)的反应温度范围是0~80℃,优选30~40℃。
优选的,所述步骤2)的反应溶剂为二氯甲烷、氯仿、乙腈,优选为二氯甲烷。
上述合成方法,具体包括以下步骤:
1)合成3-氯-4-(2-吡啶甲氧基)溴苯
将2-氯-4-溴苯酚、2-氯甲基吡啶盐酸盐和碱加入到反应溶剂中,加热至40~ 55℃保温反应,反应完毕后降至室温,向反应液中加入水,然后过滤,洗涤滤饼,烘干得3-氯-4-(2-吡啶甲氧基)溴苯;
2)合成N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺
将3-氯-4-(2-吡啶甲氧基)溴苯和四氟硼酸亚硝(BF4NO)加入到反应溶剂中,搅拌下加入丙二腈,加热至30~40℃保温反应;反应完毕,加入少量甲醇,蒸干溶剂,加入乙醇和水混合液打浆,过滤,烘干得N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺。
所述步骤1)中,按摩尔比计,2-氯-4-溴苯酚:2-氯甲基吡啶盐酸盐:碱=1:1.0~1.2:2.0~2.4。所述的反应溶剂与水的体积比为1:1~5,优选为1:3。
所述步骤2)中,按摩尔比计,其中3-氯-4-(2-吡啶甲氧基)溴苯:亚硝基四氟硼酸盐(NOBF4):丙二腈=1:1.0~1.1:1.0~1.2。所述乙醇和水混合液中乙醇和水的体积比为1:1。所述甲醇和反应溶剂的体积比为1:10~30,优选1:20。
本发明的有益效果为:本发明的合成路线简单,反应条件温和(无低温、高温及高压反应),产品收率高(总收率≥90%),反应步骤及后处理简单,易于工业化生产。
具体实施方式
实施例1
1)合成3-氯-4-(2-吡啶甲氧基)溴苯
将2-氯-4-溴苯酚20g、2-氯甲基吡啶盐酸盐17.4g和氢氧化钠8.1g加入到乙腈80ml中,升温至45℃,搅拌反应3.5h,反应完(TLC,乙酸乙酯:正己烷=1:1)。将反应液降至室温,向反应液中加入240ml水,搅拌0.5小时,过滤,滤饼水洗至中性,烘干,得固体3-氯-4-(2-吡啶甲氧基)溴苯28g,收率97.3%。
2)合成N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺
将3-氯-4-(2-吡啶甲氧基)溴苯28g和四氟硼酸亚硝(BF4NO)11.5g加入到100ml二氯甲烷中,搅拌下加入丙二腈6.8g,升温至35℃保温反应4.5h,反应完(TLC,乙酸乙酯:二氯甲烷=1:1),加入5ml甲醇,蒸干溶剂,加入乙醇和水(1:1)150ml,打浆搅拌0.5小时,过滤,乙醇洗滤饼,烘干得N-(3- 氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺27.1g,收率95.8%,纯度99.5%。
实施例2
1)合成3-氯-4-(2-吡啶甲氧基)溴苯
将2-氯-4-溴苯酚20g、2-氯甲基吡啶盐酸盐17.5g和氢氧化钠8.5g加入到 100ml乙腈中,升温至50℃,搅拌反应4小时,反应完(TLC,乙酸乙酯:正己烷=1:1);将反应液降至室温,向反应液中加入300ml水,搅拌0.5小时,过滤,滤饼水洗至中性,烘干,得固体3-氯-4-(2-吡啶甲氧基)溴苯27.6g,收率 95.9%。
2)合成N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺
将3-氯-4-(2-吡啶甲氧基)溴苯27.6g和四氟硼酸亚硝(BF4NO)11.3g加入到100ml二氯甲烷中,搅拌下加入丙二腈6.7g,升温至35℃保温反应,搅拌反应5小时,反应完(TLC,乙酸乙酯:二氯甲烷=1:1);向反应液中加入5ml 甲醇,蒸干溶剂,加入乙醇和水(1:1)150ml,打浆搅拌0.5小时,过滤,乙醇洗滤饼,烘干得N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺26.8g,收率96.0%,纯度99.6%。

Claims (6)

1.一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的合成方法,其特征是,
包括以下步骤:
1)合成3-氯-4-(2-吡啶甲氧基)溴苯
将2-氯-4-溴苯酚、2-氯甲基吡啶盐酸盐和碱加入到反应溶剂中,加热至40~55℃保温反应,反应完毕后降至室温,向反应液中加入水,然后过滤,洗涤滤饼,烘干得3-氯-4-(2-吡啶甲氧基)溴苯;
2)合成N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺
将3-氯-4-(2-吡啶甲氧基)溴苯和四氟硼酸亚硝加入到反应溶剂中,搅拌下加入丙二腈,加热至30~40℃保温反应;反应完毕,加入甲醇,蒸干溶剂后加入乙醇和水混合液打浆,过滤,烘干得N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺。
2.如权利要求1所述的一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的合成方法,其特征是,所述步骤1)的碱为氢氧化钠、氢氧化钾或者氢氧化锂。
3.如权利要求1所述的一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的合成方法,其特征是,所述步骤1)的反应溶剂为乙腈、丙酮、DMF、DMSO或者二氧六环。
4.如权利要求1所述的一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的合成方法,其特征是,所述步骤2)的反应溶剂为二氯甲烷、氯仿或者乙腈。
5.如权利要求1所述的一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的合成方法,其特征是,所述步骤1)中,按摩尔比计,2-氯-4-溴苯酚:2-氯甲基吡啶盐酸盐:碱=1:1.0~1.2:2.0~2.4。
6.如权利要求1所述的一种N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的合成方法,其特征是,所述步骤2)中,按摩尔比计,3-氯-4-(2-吡啶甲氧基)溴苯:亚硝基四氟硼酸盐:丙二腈=1:1.0~1.1:1.0~1.2。
CN201911279772.2A 2019-12-13 2019-12-13 一种n-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法 Active CN110818619B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911279772.2A CN110818619B (zh) 2019-12-13 2019-12-13 一种n-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911279772.2A CN110818619B (zh) 2019-12-13 2019-12-13 一种n-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法

Publications (2)

Publication Number Publication Date
CN110818619A CN110818619A (zh) 2020-02-21
CN110818619B true CN110818619B (zh) 2021-03-02

Family

ID=69545261

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911279772.2A Active CN110818619B (zh) 2019-12-13 2019-12-13 一种n-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法

Country Status (1)

Country Link
CN (1) CN110818619B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114736154B (zh) * 2022-03-15 2023-07-21 安庆朗坤药业有限公司 N-(3-氯-4-(2-吡啶甲氧基)苯基)-2-氰基乙酰胺的制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001022966A1 (en) * 1999-09-30 2001-04-05 Smithkline Beecham Corporation Caspases and apoptosis
CN101180269A (zh) * 2005-05-25 2008-05-14 惠氏公司 制备3-氰基-喹啉的方法和由其制得的中间体
CN105330646A (zh) * 2015-12-04 2016-02-17 上海勋和医药科技有限公司 一种抗肿瘤药马来酸来那替尼的制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001022966A1 (en) * 1999-09-30 2001-04-05 Smithkline Beecham Corporation Caspases and apoptosis
CN101180269A (zh) * 2005-05-25 2008-05-14 惠氏公司 制备3-氰基-喹啉的方法和由其制得的中间体
CN105330646A (zh) * 2015-12-04 2016-02-17 上海勋和医药科技有限公司 一种抗肿瘤药马来酸来那替尼的制备方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
66. Nitrosonium Ion Induced Preparation of Amides from Alkyl(Aryl-alkyl) Halides with Nitriles, a Mild and selective Ritter-Type Reaction.《Synthesis》.1979,(第4期),274-276. *
Chemoselective palladium-catalyzed deprotonative arylation/[1,2]-Wittig rearrangement of pyridylmethyl ethers;Feng Gao等;《Chemical Science》;20151027;第7卷;976-983 *
George A. Olah等.Synthetic Methods and Reactions *
Reaction of Alkyl Halides and Alkyl Methyl Ethers with Nitronium Tetrafluoroborate in Acetonitrile;Robert D. Bach等;《J. Org. Chem.》;19791231;第44卷(第10期);1739-1740 *

Also Published As

Publication number Publication date
CN110818619A (zh) 2020-02-21

Similar Documents

Publication Publication Date Title
CN110818619B (zh) 一种n-(3-氯-4-(2-吡啶甲氧基)苯基)-2氰基乙酰胺的合成方法
CN111978193A (zh) 一种8-(2-羟基苯甲酰胺基)辛酸钠及其制备方法
CN114230576A (zh) 一种瑞卢戈利的制备方法
CN100591649C (zh) R-(+)-3-氯苯丙醇的制备方法
CN111533677A (zh) 一种合成盐酸阿比朵尔中间体的方法
WO2023039940A1 (zh) 一种制备n,n,n-三特戊酰化-1,3,5-三氨基苯的方法
CN116120236A (zh) 一种6-氯-2-甲基-2h-吲唑-5-胺的制备方法
CN114031516A (zh) 一种基于锆催化剂催化合成n-酰基氨基酸表面活性剂的方法
CN109232222B (zh) 一种(e)-辛-4-烯-1,8-二酸的制备方法
CN117069711A (zh) 一种苯并噁嗪-4-酮衍生物的制备方法
CN115124545B (zh) 一种促性腺激素释放激素受体拮抗剂中间体的合成方法
CN111925374A (zh) 四嗪-呋咱环类高氮含能化合物及其合成方法
CN115141183B (zh) 心肌灌注显像剂前体的制备方法及其用途
CN114751836B (zh) 3-(4-甲基-1h-咪唑-1-基)-5-(三氟甲基)苯胺合成方法及其中间体
JP7454498B2 (ja) サリチルアミド酢酸塩の製造方法
CN117447355B (zh) 一种米洛巴林中间体的制备方法
CN115043845B (zh) 一种西地那非的合成方法
CN114907415B (zh) 一种双(二叔丁基-4-二甲氨基苯基膦)氯化钯的制备方法
CN114292297B (zh) 一种制备抗病毒药物替诺福韦艾拉酚胺富马酸盐的方法
CN114057668B (zh) 一种氨基保护基手性2-氨基-3-(4-吗啉基苯基)丙酸的合成方法
CN107573345A (zh) 一种艾代拉利司及其中间体的制备方法
CN115716809A (zh) 6-甲基-1,3,5-三嗪-2,4-二胺及其制备方法
CN114478417A (zh) 5-对甲苯基-1,2,4-三嗪-3(2h)-酮的合成方法
CN110218169B (zh) 手性4-(n-苄氧羰基)吡咯烷酮的合成方法
CN115947675A (zh) 一种雷沙吉兰中间体及其制备方法和应用

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
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 251400 No. 12, Taixing East Street, Jibei Economic Development Zone, Jiyang District, Jinan City, Shandong Province

Patentee after: Shandong Baoyuan Pharmaceutical Co.,Ltd.

Address before: Strong in Jiyang County of Ji'nan City, 251400 North Street, Shandong Province Economic Development Zone

Patentee before: SHANDONG BOYUAN PHARMACEUTICAL Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Synthesis of N - (3-chloro-4 - (2-pyridylmethoxy) phenyl) - 2-cyanoacetamide

Effective date of registration: 20221130

Granted publication date: 20210302

Pledgee: Qilu bank Limited by Share Ltd. Ji'nan science and technology innovation center sub branch

Pledgor: Shandong Baoyuan Pharmaceutical Co.,Ltd.

Registration number: Y2022980023658