摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

(R)-3-isobutylpentanedioic acid amide-((S)-1-phenylethyl)amide | 930280-43-6

中文名称
——
中文别名
——
英文名称
(R)-3-isobutylpentanedioic acid amide-((S)-1-phenylethyl)amide
英文别名
(r)-3-Isobutylpentanedioic acid amide((s)-1-phenylethyl)amide;(3R)-3-(2-methylpropyl)-N'-[(1S)-1-phenylethyl]pentanediamide
(R)-3-isobutylpentanedioic acid amide-((S)-1-phenylethyl)amide化学式
CAS
930280-43-6
化学式
C17H26N2O2
mdl
——
分子量
290.406
InChiKey
QTTLJYMEHAIKMJ-UONOGXRCSA-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:
    533.4±43.0 °C(Predicted)
  • 密度:
    1.040±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.3
  • 重原子数:
    21
  • 可旋转键数:
    8
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.53
  • 拓扑面积:
    72.2
  • 氢给体数:
    2
  • 氢受体数:
    2

上下游信息

  • 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:
    (R)-3-isobutylpentanedioic acid amide-((S)-1-phenylethyl)amide 、 sodium hydroxide 作用下, 以 异丙醇 为溶剂, 反应 2.0h, 以94%的产率得到(S)-3-(aminomethyl)-5-methyl-N-((S)-1-phenylethyl)hexanamide
    参考文献:
    名称:
    不对称制备(S)-3-氨甲基-5-甲基己酸
    摘要:
    本发明公开了一种不对称制备(S)‑3‑氨甲基‑5‑甲基己酸的方法,其特征在于:合成步骤包括:以3‑异丁基戊二酸为原料依次经过与含氮试剂进行环合反应、与(S)‑(+)‑1‑苯乙胺进行不对称开环、霍夫曼重排、酰胺水解四步反应得到(S)‑3‑氨甲基‑5‑甲基己酸。与现有技术相比,本发明原料价廉易得、反应步骤较短、反应条件温和、避免使用易制毒及易制爆试剂,总收率高达72%,异丁加巴产品纯度大于99%,ee值大于99%,在工业放大生产中具有非常好的应用前景。
    公开号:
    CN108456143A
  • 作为产物:
    描述:
    参考文献:
    名称:
    [EN] SYNTHESIS OF (S)-(+)-3-(AMINOMETHYL)-5-METHYL HEXANOIC ACID
    [FR] SYNTHÈSE DE L'ACIDE (S)-(+)-3-(AMINOMÉTHYL)-5-MÉTHYLHEXANOÏQUE
    摘要:
    公开号:
    WO2008118427A9
点击查看最新优质反应信息

文献信息

  • 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-氰基-5-甲基-己-2-烯酸烷基酯;(b)将式(IV)的2-氰基-5-甲基-己-2-烯酸烷基酯与适当的氰化物源在水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)通过在水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氰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)通过在水中或适当的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-氰基-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-氰基-5-甲基-己酸或其盐转化为式(VII)的外消旋烷基3-氰基-5-甲基-己酸酯;(f)通过在水或有机溶剂或其混合物中,通过酶选择性立体选择性水解,从式(VII)的外消旋烷基3-氰基-5-甲基-己酸酯获得(S)-烷基3-氰基-5-甲基-己酸酯的式(VIII)和(R)-3-氰基-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-氰基-5-甲基-己酸或其盐的式(X)或富集的(R)-3-氰基-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)通过在水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-氰基-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金属碱水解酯基,然后在一个锅中进行氢化。
  • Novel asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid
    申请人:Kansal Kumar Vinod
    公开号:US20070197827A1
    公开(公告)日:2007-08-23
    The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    这项发明涵盖了合成(S)-(+)-3-(氨甲基)-5-甲基己酸,(S)-普瑞巴林和(S)-普瑞巴林中间体的过程。
  • Novel asymmetric synthesis of (S)-(+)-3-(Aminomethyl)-5-methylhexanoic acid
    申请人:Kansal Vinod Kumar
    公开号:US20090062562A1
    公开(公告)日:2009-03-05
    The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    该发明涵盖了合成(S)-(+)-3-(氨甲基)-5-甲基己酸,(S)-普瑞巴林和(S)-普瑞巴林中间体的过程。
  • Synthesis of (S)-(+)-3-(aminomethyl)-5-methyl hexanoic acid
    申请人:Kansal Vinod Kumar
    公开号:US20080306292A1
    公开(公告)日:2008-12-11
    Provided are syntheses of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin via a chiral intermediate of the following formula 4 wherein Ar is a C 6-10 aromatic group, R is a straight or branched C 1-4 alkyl, ester, or carboxylic acid, and R 1 is a straight or branched C 1-5 alkyl, aralkyl, or substituted aralkyl.
    提供了以下化学物质的合成方法:(S)-(+)-3-(氨甲基)-5-甲基己酸和(S)-普瑞巴林,通过手性中间体4合成,其中Ar是C6-10芳香基团,R是直链或支链C1-4烷基,酯基或羧酸基,而R1是直链或支链C1-5烷基,芳基烷基或取代芳基烷基。
  • Novel asymmetric synthesis of (s)-(+)-3-(AMINOMETHYL)-5- methylhexanoic acid
    申请人:Kansal Vinod Kumar
    公开号:US20100081841A1
    公开(公告)日:2010-04-01
    The invention encompasses processes for the synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid, (S)-Pregabalin, and intermediates of (S)-Pregabalin.
    本发明涵盖了合成(S)-(+)-3-(氨甲基)-5-甲基己酸,(S)-普瑞巴林和(S)-普瑞巴林中间体的过程。
查看更多