3-ethyl-5-methyl-hexanoic acid | 872309-73-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 3-ethyl-5-methyl-hexanoic acid
• 英文别名: 3-Aethyl-5-methyl-hexansaeure；3-Ethyl-5-methylhexanoic acid
• CAS: 872309-73-4
• 化学式: C₉H₁₈O₂
• mdl: MFCD02258639
• 分子量: 158.241
• InChiKey: QJYCGYPXTIJAQX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.888
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-ethyl-5-methyl-hexanoic acid 在 氯化亚砜 作用下， 生成 3-ethyl-5-methyl-hexanoyl chloride
  参考文献：
  名称：

  Fieser et al., Journal of the American Chemical Society, 1948, vol. 70, p. 3177

  摘要：

  DOI：
• 作为产物：
  描述：

  3-ethyl-3-hydroxy-5-methyl-hexanoic acid methyl ester 在 potassium hydrogensulfate 作用下， 生成 3-ethyl-5-methyl-hexanoic acid
  参考文献：
  名称：

  Fieser et al., Journal of the American Chemical Society, 1948, vol. 70, p. 3177

  摘要：

  DOI：

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。
• Compositions, and kits comprising targeted aldehyde or acetal protease inhibitor compounds for treating muscle disorders
  申请人：Stracher Alfred

  公开号：US20080039531A1

  公开（公告）日：2008-02-14

  Described herein are compounds that comprise a carrier residue that is or is an analog of carnitine, an optional linker group, and a residue of a protease inhibitor comprising an aldehyde group or acetal derivatives of the aldehyde group, and pharmaceutical compositions and kits thereof. The compounds, compositions, and kits are useful for treating muscle disorders in animals and humans that result from the undesired activity of biological proteases. The compounds of the invention are particularly effective as calpain inhibitors, and can be used to treat the resulting muscular disorders, exemplified by Duchenne or Becker muscular dystrophy.

  本文介绍的是一种化合物，该化合物包括一个载体残基，该载体残基是肉碱或其类似物，一个可选的连接基团，以及一个蛋白酶抑制剂残基，该蛋白酶抑制剂残基包括一个醛基或醛基的缩醛衍生物，以及其制备的药物组合物和试剂盒。这些化合物、组合物和试剂盒可用于治疗动物和人类的肌肉疾病，这些肌肉疾病是由生物蛋白酶的不良活性引起的。本发明的化合物特别有效地作为卡尔帕因抑制剂，并可用于治疗由此引起的肌肉疾病，例如杜氏或贝克肌肉萎缩症。
• INSOLUBLE INSULIN COMPOSITIONS
  申请人：ELI LILLY AND COMPANY

  公开号：EP0911035A2

  公开（公告）日：1999-04-28

  The present invention relates to insoluble compositions containing acylated proteins selected from the group consisting of acylated insulin, acylated insulin analog, and acylated proinsulin, and formulations thereof. The formulations are suitable for parenteral delivery or other means of delivery, to a patient for extended control of blood glucose levels. More particularly, the present invention relates to compositions comprised of an acylated protein complexed with zinc, protamine, and a phenolic compound such that the resulting microcrystal is analogous to the neutral protamine Hagedorn (NPH) insulin crystal form. Surprisingly, it has been discovered that compositions of such acylated proteins have therapeutically superior subcutaneous release pharmacokinetics, and more extended and flatter glucodynamics, than presently available commercial preparations of NPH insulin. Yet, the present crystals retain certain advantageous properties of NPH crystals, being readily able to be resuspended and also mixable with soluble insulins.

  本发明涉及含有选自由酰化胰岛素、酰化胰岛素类似物和酰化原胰岛素组成的组中的酰化蛋白质的不溶性组合物及其制剂。这些制剂适用于肠道外给药或以其他方式给药，以延长对患者血糖水平的控制。更具体地说，本发明涉及一种由酰化蛋白质与锌、原胺和酚类化合物络合而成的组合物，由此产生的微晶类似于中性原胺哈格多恩（NPH）胰岛素晶型。令人惊奇的是，人们发现这种酰化蛋白质的组合物与目前市售的 NPH 胰岛素商业制剂相比，具有更优越的皮下释放药代动力学和更持久、更平稳的血糖动力学。然而，目前的晶体仍保留了 NPH 晶体的某些有利特性，易于重新悬浮，也可与可溶性胰岛素混合。
• Insoluble compositions for controlling blood glucose
  申请人：ELI LILLY AND COMPANY

  公开号：EP0925792A2

  公开（公告）日：1999-06-30

  The present invention relates to insoluble compositions comprising a protein selected from the group consisting of insulin, insulin analogs, and proinsulins; a derivatized protein selected from the group consisting of derivatized insulin, derivatized insulin analog, and derivatized proinsulin; a complexing compound; a hexamer-stabilizing compound; and a divalent metal cation. Formulations of the insoluble composition are suitable for both parenteral and non-parenteral delivery for treating hyperglycemia and diabetes. Microcrystal forms of the insoluble precipitate are pharmaceutically analogous to the neutral protamine Hagedorn (NPH) insulin crystal form. Surprisingly, it has been discovered that suspension formulations of such insoluble compositions possess unique and controllable dissolution properties that provide therapeutically advantageous glucodynamics compared with insulin NPH formulations.

  本发明涉及不溶性组合物，该组合物包含选自由胰岛素、胰岛素类似物和原胰岛素组成的组的蛋白质；选自由衍生化胰岛素、衍生化胰岛素类似物和衍生化原胰岛素组成的组的衍生化蛋白质；复合物；六聚体稳定化合物；以及二价金属阳离子。不溶性组合物的制剂既适用于肠道外给药，也适用于治疗高血糖和糖尿病的非肠道外给药。不溶性沉淀物的微晶形式在药学上类似于中性原明哈格登（NPH）胰岛素晶体形式。令人惊奇的是，人们发现这种不溶性组合物的悬浮制剂具有独特的可控溶解特性，与 NPH 胰岛素制剂相比，这种悬浮制剂具有治疗上有利的血糖动力学特性。
• Insoluble Insulin Compositions for Controlling Blood Glucose
  申请人：Eli Lilly & Company

  公开号：EP1396272A1

  公开（公告）日：2004-03-10

  The present invention relates to insoluble compositions comprising a protein selected from the group consisting of insulin, insulin analogs, and proinsulins; a derivatized protein selected from the group consisting of derivatized insulin, derivatized insulin analog, and derivatized proinsulin; a complexing compound; a hexamer-stabilizing compound; and a divalent metal cation. Formulations of the insoluble composition are suitable for both parenteral and non-parenteral delivery for treating hyperglycemia and diabetes. Microcrystal forms of the insoluble precipitate are pharmaceutically analogous to the neutral protamine Hagedorn (NPH) insulin crystal form. Surprisingly, it has been discovered that suspension formulations of such insoluble compositions possess unique and controllable dissolution properties that provide therapeutically advantageous glucodynamics compared with insulin NPH formulations.

  本发明涉及不溶性组合物，该组合物包含选自由胰岛素、胰岛素类似物和原胰岛素组成的组的蛋白质；选自由衍生化胰岛素、衍生化胰岛素类似物和衍生化原胰岛素组成的组的衍生化蛋白质；复合物；六聚体稳定化合物；以及二价金属阳离子。不溶性组合物的制剂既适用于肠道外给药，也适用于治疗高血糖和糖尿病的非肠道外给药。不溶性沉淀物的微晶形式在药学上类似于中性原明哈格登（NPH）胰岛素晶体形式。令人惊奇的是，人们发现这种不溶性组合物的悬浮制剂具有独特的可控溶解特性，与 NPH 胰岛素制剂相比，这种悬浮制剂具有治疗上有利的血糖动力学特性。