第 42 卷第 4 期 |  | Vol. 42 No. 4 | 2012 年 8 月 | Aug 2012 |
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所屬欄目:醫藥及中間體
(2S,4E)-5-氯-2-異丙基-4-戊烯酸乙酯的簡(jiǎn)易合成 |
吳桂平,王有名*,周正洪
(南開(kāi)大學(xué)元素有機化學(xué)國家重點(diǎn)實(shí)驗室 元素有機化學(xué)研究所,天津 300071) |
摘 要:以異戊酸乙酯與(E)-1,3-二氯丙烯為原料,通過(guò)烷基化反應得到(±)-(4E)-5-氯-2-異丙基-4-戊烯酸乙酯,經(jīng)豬肝酯酶催化(進(jìn)行動(dòng)力學(xué)拆分)得到純阿利克侖(Aliskiren)中間體(2S,4E)-5-氯-2-異丙基-4-戊烯酸乙酯。通過(guò)回收拆分母液以88%的收率得到(2R,4E)-5-氯-2-異丙基-4-戊烯酸。該方法綠色環(huán)保,操作簡(jiǎn)潔易行,具有工業(yè)化應用前景。 |
關(guān)鍵詞:阿利克;1,3-(E)-1,3-二氯丙烯;豬肝酯酶;(2S,4E)-5-氯-2-異丙基-4-戊烯酸乙酯;動(dòng)力學(xué)拆分 |
中圖分類(lèi)號:TQ463+.54 文獻標識碼:A 文章編號:1009-9212(2012)04-0040-02 |
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Concise Synthesis of Ethyl(2S,4E)-5-choro-2- isopropylpent-4-ene carboxylate |
WU Gui-ping,WANG You-ming*,ZHOU Zheng-hong
(State Key Laboratory and Institute of Elemento-Organic Chemistry;Nankai University,Tianjin 300071,China) |
Abstract:Ethyl(±)-(4E)-5-choro-2-isopropylpent-4-ene carboxylate was synthesized from ethyl isovalerate and(E)-1,3-dichloropropene,followed by conversion to ethyl(2S,4E)-5-choro-2-isopropylpent-4-ene carboxylate,a key intermediate for Aliskiren,by porcine liver esterase catalyzed dynamic kinetic resolution(DKR). At the mean time,(2R,4E)-5-chloro-2-(1-methylethyl)-4-pentenoic acid was obtained in 88% yield by recycling the mother liquid. In summary,an environmentally friendly practical method has been developed. |
Key words:Aliskiren;(E)-1,3-dichloropropene;porcine liver esterase;(2S,4E)-5-choro-2-isopropylpent-4-ene carboxylate;dynamic kinetic resolution |
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作者簡(jiǎn)介:吳桂平(1958-),男,天津人,工程師,研究方向:醫藥中間體。
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聯(lián) 系 人:王有名,副教授。(E-mail:youmingwang@eyou.com)
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收稿日期:2012-07-18
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