CN110818618A - 一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法 - Google Patents

一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法 Download PDF

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CN110818618A
CN110818618A CN201911171954.8A CN201911171954A CN110818618A CN 110818618 A CN110818618 A CN 110818618A CN 201911171954 A CN201911171954 A CN 201911171954A CN 110818618 A CN110818618 A CN 110818618A
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chloro
nitrophenoxy
methyl
pyridine
pyrroltinib
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赵孝杰
苏曼
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SHANDONG BOYUAN PHARMACEUTICAL CO Ltd
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    • 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

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Abstract

本发明公开了一种吡咯替尼中间体2‑[(2‑氯‑4‑硝基苯氧基)甲基]吡啶的合成方法。该方法由2‑溴甲基吡啶和2‑氯‑4‑硝基苯酚在碱性条件下温和反应得到2‑[(2‑氯‑4‑硝基苯氧基)甲基]吡啶。本发明反应条件温和,后处理简单,产品纯度高(收率≥95%)和收率高(纯度≥99.5%),适宜于工业化生产。

Description

一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的 合成方法
技术领域
本发明涉及一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,属于医药技术领域。
背景技术
吡咯替尼是新一代抗HER2治疗靶向药,其机制是泛-ErbB受体的、小分子、不可逆酪氨酸激酶抑制剂(TKI),与HER1、HER2和HER4的胞内激酶区ATP结合位点共价结合,阻止HER家族同/异源二聚体形成,抑制自身磷酸化,阻断下游信号通路的激活,抑制肿瘤细胞生长,具有全能、强效的抗肿瘤作用。与上一代抗HER2药物如曲妥珠单抗相比,吡咯替尼可直接作用于HER2通路的酪氨酸激酶区,全面阻断包括曲妥珠单抗无法阻断的HER2异源二聚体在内的所有二聚体下游通路;与其他小分子抗HER2药物如拉帕替尼相比,吡咯替尼靶点更全面,且对靶点造成不可逆抑制,更强效地抑制肿瘤生长;与另一小分子抗HER2药物来那替尼相比,吡咯替尼生物利用度更高,因此对肿瘤细胞的抑制强度更高,且安全性更好。也就是说,无论在药物机制或疗效上,吡咯替尼都优于目前其他已上市的HER2药物。
2-[(2-氯-4-硝基苯氧基)甲基]吡啶是吡咯替尼合成过程中的一个重要的中间体,由于吡咯替尼是一种新研发的药品,关于吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的研究报道较少,根据文献报道只有一种合成方法,合成路线如下所示。
该路线是以乙腈为溶剂,在碱性条件下(采用KOH),由2-羟甲基吡啶与2-氯-4-硝基氟苯进行反应得到。该合成方法在生产过程中反应时间较长,且产品收率偏低,不适宜于工业化生产。
发明内容
本发明克服了现有技术的不足,提供了一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的新的合成方法。该合成方法是由2-溴甲基吡啶和2-氯-4-硝基苯酚在碱性条件下温和反应得到2-[(2-氯-4-硝基苯氧基)甲基]吡啶。其反应条件温和,后处理简单,产品纯度高,收率高,适宜于工业化生产。
本发明的技术方案是:一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,向反应容器中加入2-溴甲基吡啶、2-氯-4-硝基苯酚、反应溶剂和碳酸钠,10-30℃下反应4-6小时;反应完成后加水使2-[(2-氯-4-硝基苯氧基)甲基]吡啶析出,过滤,水洗滤饼,烘干,得类白色固体2-[(2-氯-4-硝基苯氧基)甲基]吡啶。
反应方程式如下所示:
Figure BDA0002288942350000022
优选的,所述反应温度为20-30℃,反应完成后加水(水与反应溶剂的体积比为1.5~2:1),搅拌,然后降温至8-12℃继续搅拌使2-[(2-氯-4-硝基苯氧基)甲基]吡啶析出,过滤。
所述反应溶剂为乙腈、纯化水、醇类(甲醇、乙醇、异丁醇),优选乙腈。
所述烘干温度优选为60-65℃。
所述2-溴甲基吡啶和2-氯-4-硝基苯酚的摩尔比为1:0.9~1.5。
所述2-溴甲基吡啶和碳酸钠的摩尔比为1:0.9~1.5。
本发明的有益效果是:本发明反应条件温和,后处理简单,产品纯度高(纯度≥99.5%)和收率高(收率≥95%),适宜于工业化生产。
具体实施方式
以下实例是对本发明的进一步说明,但是本发明并不局限于此。
实施例1:
向1000ml三口瓶中加入40g 2-溴甲基吡啶、44g 2-氯-4-硝基苯酚,加入300ml乙腈和24.6g碳酸钠,开启搅拌,控制反应瓶内温度为25℃搅拌反应5小时,然后加入饮用水500ml,搅拌10分钟后降温至10℃搅拌30分钟,过滤,用200ml饮用水洗涤滤饼,所得湿品固体置于热风循环烘箱,控温60-65℃烘干6小时,得类白色固体59.68g,收率96.98%,纯度99.83%。
实施例2:
向1000ml三口瓶中加入40g 2-溴甲基吡啶、45.0g 2-氯-4-硝基苯酚,加入300ml乙腈和25.0g碳酸钠,开启搅拌,控制反应瓶内温度为25℃搅拌反应5小时,然后加入饮用水500ml,搅拌12分钟后降温至10℃搅拌35分钟,过滤,用200ml饮用水洗涤滤饼,所得湿品固体置于热风循环烘箱,控温60-65℃烘干6小时,得类白色固体59.25g,收率96.28%,纯度99.61%。
实施例3:
向1000ml三口瓶中加入40g 2-溴甲基吡啶、43.0g 2-氯-4-硝基苯酚,加入300ml乙腈和24.0g碳酸钠,开启搅拌,控制反应瓶内温度为25℃搅拌反应6小时,然后加入饮用水500ml,搅拌10分钟后降温至10℃搅拌25分钟,过滤,用200ml饮用水洗涤滤饼,所得湿品固体置于热风循环烘箱,控温60-65℃烘干6小时,得类白色固体58.73g,收率95.43%,纯度99.85%。

Claims (7)

1.一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,向反应容器中加入2-溴甲基吡啶、2-氯-4-硝基苯酚、反应溶剂和碳酸钠,10-30℃下反应4-6小时;反应完成后加水使2-[(2-氯-4-硝基苯氧基)甲基]吡啶析出,过滤,水洗滤饼,烘干,得2-[(2-氯-4-硝基苯氧基)甲基]吡啶。
2.如权利要求1所述的一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,所述使2-[(2-氯-4-硝基苯氧基)甲基]吡啶析出具体为:20-30℃下反应,反应完成后加水,水与反应溶剂的体积比为1.5~2:1,搅拌,然后降温至8-12℃继续搅拌使2-[(2-氯-4-硝基苯氧基)甲基]吡啶析出。
3.如权利要求1或2所述的一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,所述反应溶剂为乙腈、纯化水、醇类。
4.如权利要求3所述的一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,所述醇类为甲醇、乙醇或者异丁醇。
5.如权利要求1或2所述的一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,所述烘干温度为60-65℃。
6.如权利要求1或2所述的一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,所述2-溴甲基吡啶和2-氯-4-硝基苯酚的摩尔比为1:0.9~1.5。
7.如权利要求1或2所述的一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法,其特征是,所述2-溴甲基吡啶和碳酸钠的摩尔比为1:0.9~1.5。
CN201911171954.8A 2019-11-26 2019-11-26 一种吡咯替尼中间体2-[(2-氯-4-硝基苯氧基)甲基]吡啶的合成方法 Pending CN110818618A (zh)

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