CN105622469A - 含氮、氟烷基磺酰氯的制备方法 - Google Patents

含氮、氟烷基磺酰氯的制备方法 Download PDF

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CN105622469A
CN105622469A CN201610089194.6A CN201610089194A CN105622469A CN 105622469 A CN105622469 A CN 105622469A CN 201610089194 A CN201610089194 A CN 201610089194A CN 105622469 A CN105622469 A CN 105622469A
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tertbutyloxycarbonyl
nitrogenous
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fluorine
sulfonic acid
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茅仲平
马东旭
葛永辉
任雪景
李勇猛
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SUZHOU HANDE CHUANGHONG BIOCHEMICAL TECHNOLOGY Co Ltd
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    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
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    • C07C303/00Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/26Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfonic acids
    • C07C303/28Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfonic acids by reaction of hydroxy compounds with sulfonic acids or derivatives thereof
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    • C07D211/08Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms
    • C07D211/18Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with substituted hydrocarbon radicals attached to ring carbon atoms
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    • C07D211/24Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with substituted hydrocarbon radicals attached to ring carbon atoms with hydrocarbon radicals, substituted by singly bound oxygen or sulphur atoms by sulfur atoms to which a second hetero atom is attached

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Abstract

本发明公开了一种含氮、氟烷基磺酰氯的制备方法,以含氮/氟烷基醇为原料,在碱性条件下和甲磺酰氯反应生成相应的含氮/氟烷基磺酸酯,然后含氮/氟烷基磺酸酯与硫代乙酸钾发生亲和取代反应生成含氮/氟烷基硫代乙酸酯,再经氯气处理得到含氮/氟烷基磺酰氯。本发明合成了一类含氮(氟)烷基磺酰氯,该系列化合物是多种药物、农药研发和生产的重要医药中间体,该类化合物的合成制备丰富了烷基磺酰氯医药中间体数据库,可以向市场提供烷基磺酰氯合成片段。本发明所用的原料均为市售化学试剂,成本低廉、合成路线短、产率高、得到的化学产品纯度高,为市场提供了高纯度产品,从而获得较高的经济效益。

Description

含氮、氟烷基磺酰氯的制备方法
技术领域
本发明涉及一种含氮、氟烷基磺酰氯的制备方法,属于医药中间体有机合成技术领域。
背景技术
含氮(氟)烷基磺酰氯是一种重要的医药中间体及化工产品,广泛应用于多种药物的研发和生产,近年来,含氮(氟)烷基磺酰氯成为国内外重点发展的医药中间体,其主要应用于磺胺类药物,杀虫剂,表面活性剂等药物的酯化磺化改性。WO2009067108A1报道了二氟乙磺酰胺修饰的芳杂环能显著提高对HCVNS5B酶的抑制活性,且毒性较低。WO2010110685A2报道了吡硌烷基甲磺酰胺修饰的芳杂环对癌症及对PI3K通道疾病具有一定的治疗作用。
发明内容
目的:为了克服现有技术中存在的不足,本发明提供一种含氮、氟烷基磺酰氯的制备方法,提供一系列的含(氮、氟)烷基磺酰氯合成片断,丰富了磺酰氯医药中间体数据库,为各种药物和农药及化工产品的研发和生产提供了更多的修饰选择。
技术方案:为解决上述技术问题,本发明采用的技术方案为:
一种含氮、氟烷基磺酰氯的制备方法,所述含氮、氟烷基磺酰氯的化学通式为:
其中,R为含氮烷基或含氟烷基;
合成路线如下:
制备方法为:以含氮/氟烷基醇为原料,在碱性条件下和甲磺酰氯反应生成相应的含氮/氟烷基磺酸酯,然后含氮/氟烷基磺酸酯与硫代乙酸钾发生亲和取代反应生成含氮/氟烷基硫代乙酸酯,再经氯气处理得到含氮/氟烷基磺酰氯。
作为优选方案,所述含氮、氟烷基磺酰氯为2-氟丙基-1-磺酰氯、2-氟乙基磺酰氯、N-叔丁氧羰基吖丁啶-3-磺酰氯、N-叔丁氧羰基哌啶-4-甲磺酰氯、N,N-二叔丁氧羰基-2-氨基乙磺酰氯或N,N-二叔丁氧羰基-3-氨基丙磺酰氯。
以上结构的磺酰氯能够用来研发和生产磺胺类药物,杀虫剂,表面活性剂等活性药物分子及化工产品。
当含氮、氟烷基磺酰氯为N,N-二叔丁氧羰基-2-氨基乙磺酰氯或N,N-二叔丁氧羰基-3-氨基丙磺酰氯时,以N,N-二叔丁氧羰基氨基乙/丙醇为原料,所述N,N-二叔丁氧羰基氨基乙/丙醇的合成路线为:
当含氮、氟烷基磺酰氯为2-氟丙基-1-磺酰氯,以硫代乙酸2-氟丙酯为原料;所述硫代乙酸2-氟丙酯的合成方法为:以2-氟丙醇为原料制得2-氟丙磺酸酯,再以2-氟丙磺酸酯为原料制得。
当含氮、氟烷基磺酰氯为2-氟乙基磺酰氯,以硫代乙酸-2-氟乙醇酯为原料;所述硫代乙酸-2-氟乙醇酯的合成方法为:以2-氟乙醇为原料制得2-氟乙基甲磺酸酯,再以2-氟乙基甲磺酸酯为原料制得。
当含氮、氟烷基磺酰氯为N-叔丁氧羰基吖丁啶-3-磺酰氯;以N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶为原料;所述N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶的合成方法为:以N-叔丁氧羰基-3-羟基吖丁啶为原料制得N-叔丁氧羰基吖丁啶-3-甲磺酸酯,再以N-叔丁氧羰基吖丁啶-3-甲磺酸酯为原料制得N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶。
当含氮、氟烷基磺酰氯为N-叔丁氧羰基哌啶-4-甲磺酰氯;以N-叔丁氧羰基-4-(硫代乙酰氧甲基)哌啶为原料;所述N-叔丁氧羰基-4-(硫代乙酰氧甲基)哌啶的合成方法为:以N-叔丁氧羰基哌啶-4-甲醇为原料制得N-叔丁氧羰基-4-(甲磺酰氧甲基)哌啶,再以N-叔丁氧羰基-4-[(硫代乙酰基)甲基]哌啶为原料制得N-叔丁氧羰基-4-(硫代乙酰氧甲基)哌啶。
有益效果:本发明提供的含氮、氟烷基磺酰氯的制备方法,合成了一类含氮(氟)烷基磺酰氯,该系列化合物是多种药物、农药研发和生产的重要医药中间体,该类化合物的合成制备丰富了烷基磺酰氯医药中间体数据库,可以向市场提供烷基磺酰氯合成片段。本发明所用原料为含氮(氟)直链(环)烷基醇为首次用来合成磺酰氯;所用的原料2-氟乙醇,N-叔丁氧羰基哌啶-4-甲醇、N-叔丁氧羰基-3-羟基吖丁啶、氨基乙醇,氨基丙醇均为市售化学试剂,价格低廉,容易获得,成本低廉、合成路线短、产率高、且合成方法简单,易操作,得到的化学产品纯度高,为市场提供了高纯度产品,从而获得较高的经济效益。
具体实施方式
下面结合具体实施例对本发明作更进一步的说明。
本发明含氮、氟烷基磺酰氯的合成路线:
实施例1:N,N-二叔丁氧羰基-O-叔丁基二甲基硅基-氨基乙醇的合成:
氮气保护下,在带有搅拌器的三口反应瓶中加入50克N-叔丁氧羰基-O-叔丁基二甲基硅基氨基乙醇和500毫升无水四氢呋喃(THF)中,体系置换氮气三次,体系降温至零下78度,然后向溶液中缓慢滴加113毫升正丁基锂(1.6MinHexane),滴加约60分钟,控制内温低于零下70度,滴加完毕,在此零下78度继续搅拌30分钟,然后向反应体系中缓慢滴加31克羰基二叔丁酯的100毫升无水四氢呋喃溶液,滴加约60分钟,滴加过程中控制内温低于零下70度,滴加完毕,在零下70-78度继续搅拌30-60分钟,TLC中控显示反应完毕,将反应液倒入冰水中淬灭,然后通过乙酸乙酯萃取、有机相用水洗涤、无水硫酸钠干燥、减压浓缩,粗产品经硅胶柱层析,石油醚/乙酸乙酯(v/v=99:1)洗脱,得55克N,N-二叔丁氧羰基-O-叔丁基二甲基硅基-氨基乙醇,收率81%,HPLC纯度97.0A%。
实施例2:N,N-二叔丁氧羰基-氨基乙醇的合成:
在带有搅拌器的三口反应瓶中加入50克N,N-二叔丁氧羰基-O-叔丁基二甲基硅基氨基乙醇和500毫升二氯甲烷(DCM)中,然后向溶液中加入30克2,3-二氯-5,6-二氰对苯醌(DDQ),在20-25度搅拌16小时至反应完全,向上述体系中加入200毫升水,然后通过二氯甲烷萃取、有机相用水洗涤、无水硫酸钠干燥、减压浓缩,粗产品经硅胶柱层析,石油醚/乙酸乙酯(v/v=90:10)洗脱,得21克N,N-二叔丁氧羰基-氨基乙醇,收率60%,HPLC纯度98.0A%。
实施例3:N,N-二叔丁氧羰基-O-叔丁基二甲基硅基-氨基丙醇的合成:
参照实施例1,以100克N-叔丁氧羰基-O-叔丁基二甲基硅基氨基丙醇[参考文献Bioorganic&MedicinalChemistryLetters(2009),19(11),3072-3077,以氨基丙醇为原料制备]为原料制得115克N,N-二叔丁氧羰基-O-叔丁基二甲基硅基-氨基丙醇,收率84.7%,HPLC纯度98.0A%。
实施例4:N,N-二叔丁氧羰基-氨基丙醇的合成:
参照实施例2,以100克N,N-叔丁氧羰基-O-叔丁基二甲基硅基-氨基丙醇为原料制得39克N,N-二叔丁氧羰基-氨基丙醇,收率55%,HPLC纯度98.0A%.
实施例5:2-氟乙基-甲磺酸酯的合成:
在带有搅拌器的三口反应瓶中加入20克2-氟乙醇和200毫升二氯甲烷(DCM),然后向溶液中加入47.4克三乙胺和39.3克甲磺酰氯,在20-25度搅拌16小时至反应完全,向上述体系中加入水,然后通过二氯甲烷萃取、有机相用水洗涤、无水硫酸钠干燥、减压浓缩,粗产品经硅胶柱层析,石油醚/乙酸乙酯(v/v=90:10)洗脱,得35.4克2-氟乙基-甲磺酸酯,收率90%,HPLC纯度97.8A%。
实施例6:硫代乙酸-2-氟乙醇酯的合成:
在带有搅拌器的三口反应瓶中加入20克2-氟乙基甲磺酸酯和200毫升N,N-二甲基甲酰胺(DMF)中,然后向溶液中加入19.3克硫代乙酸钾,在20-25℃度搅拌16小时至反应完全,向上述体系中加入200毫升水,然后通过乙酸乙酯萃取、有机相用水洗涤、无水硫酸钠干燥、减压浓缩,粗产品经硅胶柱层析,石油醚/乙酸乙酯(v/v=99:1)洗脱,得12克硫代乙酸-2-氟乙醇酯,收率70%,HPLC纯度99.0A%。
实施例7:2-氟乙基磺酰氯的合成:
在带有搅拌器的三口反应瓶中加入10克硫代乙酸-2-氟乙醇酯和200毫升二氯甲烷和水(v/v=1/1)混合溶剂中,体系降温至零度,然后向溶液中通入氯气至溶液呈绿色且颜色不再退去,停止通氯气,在零度下继续搅拌1-2小时,中控反应完全,分出二氯甲烷相,10%亚硫酸氢钠洗涤、无水硫酸钠干燥、减压浓缩,得8.6克2-氟乙基磺酰氯,收率72%,HNMR纯度98.0A%。
实施例8:N,N-二叔丁氧羰基-氨基乙基-甲磺酸酯的合成:
参照实施例5,以50克N,N-二叔丁氧羰基-氨基乙醇为原料制得57克N,N-二叔丁氧羰基-氨基乙基-甲磺酸酯,收率88%,HPLC纯度97.0A%。
实施例9:硫代乙酸-2-(N,N-二叔丁氧羰基氨基)-乙酯的合成:
参照实施例6,以30克N,N-二叔丁氧羰基-氨基乙基-甲磺酸酯为原料制得19.2克硫代乙酸-2-(N,N-二叔丁氧羰基氨基)-乙酯,收率68%,HPLC纯度98.0A%。
实施例10:N,N-二叔丁氧羰基-氨基乙磺酰氯的合成:
参照实施例6,以10克硫代乙酸-2-(N,N-二叔丁氧羰基氨基)乙酯为原料制得2克N,N-二叔丁氧羰基-氨基乙磺酰氯,收率20%,HNMR纯度97.0A%。
实施例11:N,N-二叔丁氧羰基氨基丙磺酸酯的合成:
参照实施例5,以100克N,N-二叔丁氧羰基氨基丙醇为原料制得117克N,N-二叔丁氧羰基氨基丙磺酸酯,收率91%,HPLC纯度96.9A%。
实施例12:硫代乙酸-2-(N,N-二叔丁氧羰基氨基)丙酯的合成:
参照实施例6,以50克N,N-二叔丁氧羰基氨基丙磺酸酯为原料制得30.7克硫代乙酸-2-(N,N-二叔丁氧羰基氨基)丙酯,收率65%,HPLC纯度97.4A%。
实施例13:N,N-二叔丁氧羰基-氨基丙磺酰氯的合成:
参照实施例6,以10克硫代乙酸-2-(N,N-二叔丁氧羰基氨基)丙酯为原料制得1.9克N,N-二叔丁氧羰基-氨基丙磺酰氯,收率18%,HNMR纯度98.0A%。
实施例14:2-氟丙磺酸酯的合成:
参照实施例5,以50克2-氟丙醇为原料制得85克2-氟丙磺酸酯,收率85%,HPLC纯度97.0A%。
实施例15:硫代乙酸2-氟丙酯的合成:
参照实施例6,以50克2-氟丙磺酸酯为原料制得31克硫代乙酸2-氟丙酯,收率71%,HPLC纯度97.0A%。
实施例16:2-氟丙基-1-磺酰氯的合成:
参照实施例7,以10克硫代乙酸2-氟丙酯为原料制得9.7克2-氟丙基-1-磺酰氯,收率82%,HPLC纯度97.0A%。
实施例17:N-叔丁氧羰基-4-(甲磺酰氧甲基)哌啶的合成:
参照实施例5,以50克N-叔丁氧羰基哌啶-4-甲醇为原料制得62.7克N-叔丁氧羰基-4-(甲磺酰氧甲基)哌啶,收率92%,HPLC纯度97.5A%。
实施例18:N-叔丁氧羰基-4-(乙酰巯甲基)哌啶的合成:
参照实施例6,以60克N-叔丁氧羰基-4-(甲磺酰氧甲基)哌啶为原料制得37.5克N-叔丁氧羰基-4-[(硫代乙酰基)甲基]哌啶,收率67%,HPLC纯度96.5A%。
实施例19:N-叔丁氧羰基哌啶-4-甲基磺酰氯的合成:
参照实施例7,以10克N-叔丁氧羰基-4-(硫代乙酰氧甲基)哌啶为原料制得3.8克N-叔丁氧羰基哌啶-4-甲基磺酰氯,收率35%,HPLC纯度97.0A%。
实施例20:N-叔丁氧羰基吖丁啶-3-甲磺酸酯的合成:
参照实施例5,以50克N-叔丁氧羰基-3-羟基吖丁啶为原料制得61.7克N-叔丁氧羰基吖丁啶-3-甲磺酸酯,收率85%,HPLC纯度97.9A%。
实施例21:N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶的合成:
参照实施例6,以55克N-叔丁氧羰基吖丁啶-3-甲磺酸酯为原料制得31.8克N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶,收率63%,HPLC纯度96.5A%。
实施例22:N-叔丁氧羰基-吖丁啶-3-磺酰氯的合成:
参照实施例7,以10克N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶为原料制得3.5克N-叔丁氧羰基-吖丁啶-3-磺酰氯,收率32%,HPLC纯度97.0A%。
以上所述仅是本发明的优选实施方式,应当指出:对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (7)

1.一种含氮、氟烷基磺酰氯的制备方法,所述含氮、氟烷基磺酰氯的化学通式为:
其中,R为含氮烷基或含氟烷基;
合成路线如下:
制备方法为:以含氮/氟烷基醇为原料,在碱性条件下和甲磺酰氯反应生成相应的含氮/氟烷基磺酸酯,然后含氮/氟烷基磺酸酯与硫代乙酸钾发生亲和取代反应生成含氮/氟烷基硫代乙酸酯,再经氯气处理得到含氮/氟烷基磺酰氯。
2.根据权利要求1所述的含氮、氟烷基磺酰氯的制备方法,其特征在于:所述含氮、氟烷基磺酰氯为2-氟丙基-1-磺酰氯、2-氟乙基磺酰氯、N-叔丁氧羰基吖丁啶-3-磺酰氯、N-叔丁氧羰基哌啶-4-甲磺酰氯、N,N-二叔丁氧羰基-2-氨基乙磺酰氯或N,N-二叔丁氧羰基-3-氨基丙磺酰氯。
3.根据权利要求1所述的含氮、氟烷基磺酰氯的制备方法,其特征在于:当含氮、氟烷基磺酰氯为N,N-二叔丁氧羰基-2-氨基乙磺酰氯或N,N-二叔丁氧羰基-3-氨基丙磺酰氯时,以N,N-二叔丁氧羰基氨基乙/丙醇为原料,所述N,N-二叔丁氧羰基氨基乙/丙醇的合成路线为:
4.根据权利要求1所述的含氮、氟烷基磺酰氯的制备方法,其特征在于:当含氮、氟烷基磺酰氯为2-氟丙基-1-磺酰氯,以硫代乙酸2-氟丙酯为原料;
所述硫代乙酸2-氟丙酯的合成方法为:以2-氟丙醇为原料制得2-氟丙磺酸酯,再以2-氟丙磺酸酯为原料制得。
5.根据权利要求1所述的含氮、氟烷基磺酰氯的制备方法,其特征在于:当含氮、氟烷基磺酰氯为2-氟乙基磺酰氯,以硫代乙酸-2-氟乙醇酯为原料;
所述硫代乙酸-2-氟乙醇酯的合成方法为:以2-氟乙醇为原料制得2-氟乙基甲磺酸酯,再以2-氟乙基甲磺酸酯为原料制得。
6.根据权利要求1所述的含氮、氟烷基磺酰氯的制备方法,其特征在于:当含氮、氟烷基磺酰氯为N-叔丁氧羰基吖丁啶-3-磺酰氯;以N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶为原料;
所述N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶的合成方法为:以N-叔丁氧羰基-3-羟基吖丁啶为原料制得N-叔丁氧羰基吖丁啶-3-甲磺酸酯,再以N-叔丁氧羰基吖丁啶-3-甲磺酸酯为原料制得N-叔丁氧羰基-3-乙酰巯甲基-吖丁啶。
7.根据权利要求1所述的含氮、氟烷基磺酰氯的制备方法,其特征在于:当含氮、氟烷基磺酰氯为N-叔丁氧羰基哌啶-4-甲磺酰氯;以N-叔丁氧羰基-4-(硫代乙酰氧甲基)哌啶为原料;
所述N-叔丁氧羰基-4-(硫代乙酰氧甲基)哌啶的合成方法为:以N-叔丁氧羰基哌啶-4-甲醇为原料制得N-叔丁氧羰基-4-(甲磺酰氧甲基)哌啶,再以N-叔丁氧羰基-4-[(硫代乙酰基)甲基]哌啶为原料制得N-叔丁氧羰基-4-(硫代乙酰氧甲基)哌啶。
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