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3-氰基-5-甲基己酸 | 181289-16-7

中文名称
3-氰基-5-甲基己酸
中文别名
普瑞巴林氰基酸杂质
英文名称
3-cyano-5-methylhexanoic acid
英文别名
——
3-氰基-5-甲基己酸化学式
CAS
181289-16-7
化学式
C8H13NO2
mdl
——
分子量
155.197
InChiKey
MGWZYUMZVZMKTN-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 沸点:
    301.5±25.0 °C(Predicted)
  • 密度:
    1.039±0.06 g/cm3(Predicted)
  • 溶解度:
    可溶于氯仿(少许)、甲醇(少许)

计算性质

  • 辛醇/水分配系数(LogP):
    1.1
  • 重原子数:
    11
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.75
  • 拓扑面积:
    61.1
  • 氢给体数:
    1
  • 氢受体数:
    3

安全信息

  • 储存条件:
    2-8℃

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    3-氰基-5-甲基己酸氢气 作用下, 80.0 ℃ 、900.01 kPa 条件下, 反应 18.0h, 生成 (R,S)-3-iso-butyl-4-aminobutyric acid
    参考文献:
    名称:
    一种以异戊醛为原料合成普瑞巴林的方法
    摘要:
    本发明公开了一种以异戊醛为原料合成普瑞巴林的方法。该方法包括:将异戊醛和丙二酸二乙酯以由二正丙胺和乙酸的混合物为催化剂、在环己烷溶剂中进行Knoevenagel缩合;将第一步所得产物在碱的醇溶剂中进行迈克尔加成;将第二步所得产物以氯化锂为催化剂于由DMSO和水所组成的溶剂中在加热条件下进行脱酸反应;将第三步所得产物在碱性条件下进行水解反应;将第四步所得产物以雷尼镍为催化剂进行催化加氢;将第五步所得产物采用脂肪酶Lipolase?100T进行手性拆分。本发明以价廉、易得的异戊醛为原料,经过Knoevenagel缩合反应、迈克尔加成、脱羧、水解、加氢反应和手性拆分,得到普瑞巴林。该反应路线简单,其每步反应的收率都较高,由此保证了最终普瑞巴林的总收率和纯度。
    公开号:
    CN105348125A
  • 作为产物:
    描述:
    普瑞巴林三氯异氰尿酸potassium tert-butylate三乙胺 作用下, 以 二氯甲烷异丙醇 为溶剂, 反应 8.0h, 生成 3-氰基-5-甲基己酸
    参考文献:
    名称:
    From pregabalin to rac-3-cyano-5-methylhexanoic acid: an easy conversion which valorizes waste pregabalin enantiomer
    摘要:
    (S)-(+)-3-Aminomethyl-5-methylhexanoic acid (pregabalin) was converted in one-pot to (S)-(-)-3-cyano-5-methylhexanoic acid (pregabalin nitrile) by N-dichlorination and double dehydrochlorination. The (S) beta-cyanoacid was racemized under mild conditions by treatment with a base. This very simple and efficient procedure, applied to (R)-(-)-3-aminomethyl-5-methylhexanoic acid, would enable the recycling of the undesired enantiomer of pregabalin, an anticonvulsant drug manufactured by the synthesis of roc-3-aminomethyl-5-methylhexanoic acid and subsequent classical resolution. (C) 2012 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.tetlet.2012.08.128
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文献信息

  • C1-symmetric bisphosphine ligands and their use in the asymmetric synthesis of pregabalin
    申请人:Bao Jian
    公开号:US20050228190A1
    公开(公告)日:2005-10-13
    Materials and methods for preparing (S)-(+)-3-(aminomethyl)-5-methyl-hexanoic acid and structurally related compounds via enantioselective hydrogenation of prochiral olefins are disclosed. The methods employ novel chiral catalysts, which include C 1 -symmetric bisphosphine ligands bound to transition metals.
    通过对原生手性烯烃进行对映选择性加氢制备(S)-(+)-3-(甲基)-5-甲基己酸及其结构相关化合物的材料和方法已被披露。这些方法采用了新颖的手性催化剂,其中包括与过渡属结合的C1对称双膦配体
  • [EN] PROCESS FOR SYNTHESIS OF (S) - PREGABALIN<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE LA (S)-PRÉGABALINE
    申请人:LUPIN LTD
    公开号:WO2012059797A1
    公开(公告)日:2012-05-10
    Improved process for the synthesis of (S)-pregabalin having more than 99% ee through (S) 3-cyano-5-methyl-hexanoic acid has been developed. In addition to above, a novel process for resolution of (RS) - 3-cyano-5-methyl-hexanoic acid through diastereomeric salt formation with cinchonidine to obtain (S) - 3-cyano-5-methyl-hexanoic acid in high yield and high optical purity has been developed and furthermore process for recovery/ reuse of cinchonidine is also developed to improve the overall process efficiency.
    已开发出一种通过(S) 3-氰基-5-甲基己酸合成具有超过99% ee的(S)-盐酸普拉巴林的改进工艺。除此之外,还开发了一种通过辛可尼丁与(RS)-3-氰基-5-甲基己酸形成对映异构盐的新工艺,以高产率和高光学纯度获得(S)-3-氰基-5-甲基己酸,并进一步开发了辛可尼丁的回收/再利用工艺,以提高整体工艺效率。
  • [EN] PROCESS FOR THE PREPARATION OF ( S ) - 3 - CYANO - 5 - METHYLHEXANOIC ACID DERIVATIVES ADN OF PREGABALIN<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS D'ACIDE (S)-3-CYANO-5-MÉTHYLHEXANOÏQUE ET DE PRÉGABALINE
    申请人:PFIZER MFG IRELAND
    公开号:WO2012025861A1
    公开(公告)日:2012-03-01
    The invention provides a process for the manufacture of a compound of formula (I) using an enzyme catalysed reduction of a compound of formula (lla) or llb). Compounds of formula (I) are useful for preparing pregabalin.
    这项发明提供了一种利用酶催化还原公式(I)化合物的制备过程,其中所述化合物为公式(lla)或llb)的化合物。公式(I)的化合物可用于制备普拉巴林。
  • Asymmetric synthesis of pregabalin
    申请人:——
    公开号:US20030212290A1
    公开(公告)日:2003-11-13
    This invention provides a method of making (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid (pregabalin) or a salt thereof via an asymmetric hydrogenation synthesis. Pregabalin is useful for the treatment and prevention of seizure disorders, pain, and psychotic disorders. The invention also provides intermediates useful in the production of pregabalin.
    该发明提供了一种通过不对称氢化合成制备(S)-(+)-3-(甲基)-5-甲基己酸盐酸普拉巴林)或其盐的方法。盐酸普拉巴林对于治疗和预防癫痫、疼痛和精神疾病很有用。该发明还提供了在生产盐酸普拉巴林过程中有用的中间体。
  • PROCESS FOR THE PREPARATION OF PREGABALIN
    申请人:HIKAL LIMITED
    公开号:US20150344919A1
    公开(公告)日:2015-12-03
    The present invention provides an improved process for the preparation of a compound of formula (I), which comprises the steps of: formula (I), (a) reacting isovaleraldehyde of formula (II) and alkyl cyanoacetate of formula (III) optionally in presence of salts of weak acid and weak base or weak base in a suitable solvent to get 2-cyano-5-methyl-hex-2-enoic acid alkyl ester of formula (IV); (b) reacting 2-cyano-5-methyl-hex-2-enoic acid alkyl ester of formula (IV) with a suitable cyanide source in water or in an organic solvent or mixture thereof to get 2-isobutylsuccinonitrile of formula (V); (c) obtaining optionally 2-isobutylsuccinonitrile of formula (V) by reacting isovaleraldehyde of formula (II) and alkyl cyanoacetate of formula (III) in presence of suitable cyanide source in water or in an organic solvent or mixture thereof in single step; (d) converting 2-isobutylsuccinonitrile of formula pa (V) to racemic 3-cyano-5-methyl-hexanoic acid or salt thereof of formula (VI) with a genetically modified nitrilase enzyme (Nit pt 9N_56_2) in water or optionally with an organic co-solvent at appropriate pH and temperature; (e) converting racemic 3-cyano-5-methyl-hexanoic acid or salt thereof of formula (VI) to racemic alkyl 3-cyano-5-methyl-hexanoate of formula (VII) by treatment with alcohol (R3OH) and acidic catalyst or alkyl halide (R3X) in presence of a base in a suitable solvent or a mixture of solvents thereof; (f) obtaining (S)-alkyl 3-cyano-5-methyl-hexanoate of formula (VIII) and (R)-3-cyano-5-methyl-hexanoic acid or salt thereof of formula (X) by enzymatic enantioselective hydrolysis in water or organic solvent or a mixture thereof from racemic alkyl 3-cyano-5-methyl-hexanoate of formula (VII); (g) obtaining optionally the compound of formula (VII) by racemizing unwanted (R)-3-cyano-5-methyl-hexanoic acid or salt thereof of formula (X) or substantially enriched (R)-3-cyano-5-methyl-hexanoic acid salt thereof of formula (X) in presence of a base in organic solvent or a mixture thereof; (h) converting (S)-alkyl 3-cyano-5-methyl-hexanoate of formula (VIII) to pregabalin of formula (I) by hydrolyzing ester group with suitable alkali or alkaline earth metal base followed by hydrogenation optionally in one pot in a solvent selected from water or other organic solvents or a mixture thereof in presence of a suitable hydrogenation catalyst.
    本发明提供了一种改进的制备化合物(I)的方法,包括以下步骤:式(I),(a)在适当溶剂中,将式(II)异戊醛和式(III)烷基氰乙酸酯在弱酸和弱碱盐或弱碱的存在下反应,得到式(IV)的2-基-5-甲基-己-2-烯酸烷基酯;(b)将式(IV)的2-基-5-甲基-己-2-烯酸烷基酯与适当的化物源在中或有机溶剂中或二者的混合物中反应,得到式(V)的2-异丁基琥珀酰腈;(c)通过在中或有机溶剂中或二者的混合物中的单步反应,将式(II)异戊醛和式(III)烷基氰乙酸酯在适当的化物源的存在下反应,可选地获得式(V)的2-异丁基琥珀酰腈;(d)通过在中或适当的pH和温度下,用一种基因改造的腈酶酶(Nit pt 9N_56_2)将式(V)的2-异丁基琥珀酰腈转化为外消旋3-基-5-甲基-己酸或其盐的式(VI);(e)通过在适当溶剂或其混合物中,在碱的存在下,用醇(R3OH)和酸性催化剂或烷基卤化物(R3X)处理,将式(VI)的外消旋3-基-5-甲基-己酸或其盐转化为式(VII)的外消旋烷基3-基-5-甲基-己酸酯;(f)通过在或有机溶剂或其混合物中,通过酶选择性立体选择性解,从式(VII)的外消旋烷基3-基-5-甲基-己酸酯获得(S)-烷基3-基-5-甲基-己酸酯的式(VIII)和(R)-3-基-5-甲基-己酸或其盐的式(X);(g)通过在有机溶剂或其混合物中,在碱的存在下,将不需要的(R)-3-基-5-甲基-己酸或其盐的式(X)或富集的(R)-3-基-5-甲基-己酸或其盐的式(X)外消旋化,可选地获得式(VII)的化合物;(h)通过在或其他有机溶剂或其混合物中,在适当的氢化催化剂的存在下,将(S)-烷基3-基-5-甲基-己酸酯转化为式(I)的前列酸,首先用适当的碱或碱土属碱解酯基,然后在一个锅中进行氢化。
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