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[1]鄢 龙,傅 晶,吴 莉,等.CDK4/6抑制剂abemaciclib合成工艺的优化[J].武汉工程大学学报,2018,40(02):149-155.[doi:10. 3969/j. issn. 1674?2869. 2018. 02. 006]
 YAN Long,FU Jing,WU Li,et al.Synthetic Process Optimization of CDK4/6 Inhibitor Abemaciclib[J].Journal of Wuhan Institute of Technology,2018,40(02):149-155.[doi:10. 3969/j. issn. 1674?2869. 2018. 02. 006]
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CDK4/6抑制剂abemaciclib合成工艺的优化(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
40
期数:
2018年02期
页码:
149-155
栏目:
化学与化学工程
出版日期:
2018-05-17

文章信息/Info

Title:
Synthetic Process Optimization of CDK4/6 Inhibitor Abemaciclib
文章编号:
20180206
作者:
鄢 龙傅 晶吴 莉冯权武尹传奇*
武汉工程大学化学与环境工程学院,湖北 武汉 430205
Author(s):
YAN Long FU Jing WU Li FENG Quanwu YIN Chuanqi*
School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
关键词:
abemaciclib 抗肿瘤药物 中间体 工艺优化
Keywords:
abemaciclib antitumor drugs intermediate process optimization
分类号:
TQ460.31
DOI:
10. 3969/j. issn. 1674?2869. 2018. 02. 006
文献标志码:
A
摘要:
对采用异丙胺和6-溴-3-吡啶甲醛为原料合成肿瘤抑制剂abemaciclib的工艺路线进行了优化,结果表明:在合成中间体6-(2-氯-5-氟嘧啶-4-基)-4-氟-1-异丙基-2-甲基-1H-苯并[d]咪唑的过程中,苯环亲核取代反应采用t-BuONa为碱,产率为83.0%;Suzuki偶联反应中硼酸酯化和脱硼酸酯,催化剂均可采用PdCl2(PPh3)2。在合成中间体5-((4-乙基哌嗪-1-基)甲基)吡啶-2-胺的过程中,还原胺化反应时加入催化量的乙酸,反应可完全进行;氨基取代吡啶环上溴原子的反应中以乙二醇为溶剂,N,N′-二甲基乙二胺(DMEDA)为配体,收率达90.0%。两中间体发生Buchwald-Hart wig偶联反应时,以K2CO3为碱,收率达92.4%。优化后总收率为44.6%,较原工艺提高19.6%,且反应条件温和,适合工业化生产。
Abstract:
The synthetic process of tumor inhibitor abemaciclib using isopropylamine and 6-bromo-3-pyridine formaldehyde as starting materials was optimized. The results showed that during the process of synthesizing the intermediate 6-(2-chloro-5-fluoropyrimidin-1-isopropyl-2-methyl-1H-benzo[d] imidazole, the yield in nucleophilic substitution reaction on benzene ring was 83.0% using t-BuONa as the base and PdCl2(PPh3)2 as the catalyst in boric acid and de-boric acid esterifications. During the process of synthesizing other intermediate 5-((4-ethylpiperazin-1-yl)methyl)pyridin-2-amine, reductive amination reaction occurred completely by adding a catalytic amount of acetic acid. The yield of the substitution reaction of bromo atom in pyridine by amino group was 90.0% using ethylene glycol as solvent and N,N′-dimethylethane-1,2-diamine (DMEDA)? as ligand. The yield of the Buchwald-Hart wig coupling reaction of two intermediates was 92.4% employing K2CO3 as the base. The total yield was 44.6% after optimization, which was 19.6% more than that of the original process. The reaction conditions are mild and suitable for industrial production.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-11-13基金项目:湖北省教育厅重点项目(D20141510);湖北省教育厅项目(B2017053)作者简介:鄢 龙,硕士研究生。E-mail:1522423725@qq.com*通讯作者:尹传奇,博士,教授。E-mail:zhyfyin@126.com引文格式:鄢龙,傅晶,吴莉,等. CDK4/6抑制剂abemaciclib合成工艺的优化[J]. 武汉工程大学学报,2018,40(2):149-155.
更新日期/Last Update: 2018-04-25