(R,S)-4,4,4-trifluoro-2-methylbutanamide | 136564-77-7

• 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: (R,S)-4,4,4-trifluoro-2-methylbutanamide
• 英文别名: 4,4,4-trifluoro-2-methylbutyramide；2-Methyl-4,4,4-trifluorobutyramide；4,4,4-trifluoro-2-methylbutanamide
• CAS: 136564-77-7
• 化学式: C₅H₈F₃NO
• 分子量: 155.12
• InChiKey: CSVKEFBFKJBWND-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  43.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (R,S)-4,4,4-trifluoro-2-methylbutanamide 在 4-二甲氨基吡啶 、 lithium hydroxide 、 lithium aluminium tetrahydride 、 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 、 二氯甲烷 为溶剂， 反应 48.0h， 生成 (R,S)-3-methoxy-4-<<1-methyl-5-<(2-methyl-4,4,4-trifluorobutyl)carbamoyl>indol-3-yl>methyl>benzoic acid
  参考文献：
  名称：

  Synthesis, Structure-Activity Relationships, and Pharmacological Evaluation of a Series of Fluorinated 3-Benzyl-5-Indolecarboxamides: Identification of 4-[[5-[((2R)-2-Methyl-4,4,4-trifluorobutyl)carbamoyl]-1-methylindol-3-yl]methyl]-3methoxy-N-[(2-methylphenyl)sulfonyl]benzamide, a Potent, Orally Active Antagonist of Leukotrienes D4 and E4

  摘要：

  The continued exploration of a series of 3-(arylmethyl)-1H-indole-5-carboxamides by the introduction of fluorinated amide substituents has resulted in the discovery of 4-[[5-[((2R)-2-methyl-4,4,4-trifluorobutyl)carbamoyl]-1-methylindol-3-yl]methyl]-3-methoxy-N-[(2-methylphenyl)sulfonyl]benzamide (38p, ZENECA ZD 3523),which has been chosen for clinical evaluation. This compound exhibited a K-i of 0.42 nM for displacement of [H-3]LTD(4) on guinea pig lung membranes, a pK(B) Of 10.13 +/- 0.14 versus LTE(4) on guinea pig trachea, and an oral ED(50) Of 1.14 mu mol/kg opposite LTD(4)-induced bronchoconstriction in guinea pigs. The R enantiomer was found to be modestly more potent than the S enantiomer 38o. Modification of the amide substituent to afford achiral compounds was unsuccessful in achieving comparable levels of activity. Profiling of 38p opposite a variety of functional assays has demonstrated the selectivity of this compound as a leukotriene receptor antagonist. The enantioselective synthesis of 38p, which employed a diastereoselective alkylation of (4R,5S)-3-(1-oxo-4,4,4-trifluorobutyl)-4-methyl-5-phenyl-2-oxazolidinone (27) as the key step to establish the chirality of the amide substituent, provided an efficient route for generating 38p in >99% enantiomeric purity.

  DOI：

  10.1021/jm00035a008
• 作为产物：
  描述：

  乙基4,4,4-三氟-2-甲基丁酸酯 在 lithium hydroxide 、 氨 、 N,N'-羰基二咪唑 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 18.5h， 生成 (R,S)-4,4,4-trifluoro-2-methylbutanamide
  参考文献：
  名称：

  Synthesis, Structure-Activity Relationships, and Pharmacological Evaluation of a Series of Fluorinated 3-Benzyl-5-Indolecarboxamides: Identification of 4-[[5-[((2R)-2-Methyl-4,4,4-trifluorobutyl)carbamoyl]-1-methylindol-3-yl]methyl]-3methoxy-N-[(2-methylphenyl)sulfonyl]benzamide, a Potent, Orally Active Antagonist of Leukotrienes D4 and E4

  摘要：

  The continued exploration of a series of 3-(arylmethyl)-1H-indole-5-carboxamides by the introduction of fluorinated amide substituents has resulted in the discovery of 4-[[5-[((2R)-2-methyl-4,4,4-trifluorobutyl)carbamoyl]-1-methylindol-3-yl]methyl]-3-methoxy-N-[(2-methylphenyl)sulfonyl]benzamide (38p, ZENECA ZD 3523),which has been chosen for clinical evaluation. This compound exhibited a K-i of 0.42 nM for displacement of [H-3]LTD(4) on guinea pig lung membranes, a pK(B) Of 10.13 +/- 0.14 versus LTE(4) on guinea pig trachea, and an oral ED(50) Of 1.14 mu mol/kg opposite LTD(4)-induced bronchoconstriction in guinea pigs. The R enantiomer was found to be modestly more potent than the S enantiomer 38o. Modification of the amide substituent to afford achiral compounds was unsuccessful in achieving comparable levels of activity. Profiling of 38p opposite a variety of functional assays has demonstrated the selectivity of this compound as a leukotriene receptor antagonist. The enantioselective synthesis of 38p, which employed a diastereoselective alkylation of (4R,5S)-3-(1-oxo-4,4,4-trifluorobutyl)-4-methyl-5-phenyl-2-oxazolidinone (27) as the key step to establish the chirality of the amide substituent, provided an efficient route for generating 38p in >99% enantiomeric purity.

  DOI：

  10.1021/jm00035a008
• 作为试剂：
  描述：

  Lithium aluminium hydride 、 (R,S)-4,4,4-trifluoro-2-methylbutanamide 、 盐酸 在 Sodium sulfate-III 、 乙醚 、 二氯甲烷 、 (R,S)-4,4,4-trifluoro-2-methylbutanamide 作用下， 以 乙醚 为溶剂， 反应 12.0h， 以afforded 2-methyl-4,4,4-trifluorobutylamine hydrochloride (51.35 g, 79%) as a light pink solid的产率得到(R,S)-4,4,4-trifluoro-2-methylbutanamine hydrochloride
  参考文献：
  名称：

  Carbamoyl derivatives

  摘要：

  本发明涉及一种新的卡巴莫基衍生物，其化学式为I，该衍生物可以拮抗被称为白三烯的花生四烯酸代谢产物的药理作用，使其在需要此种拮抗作用时变得有用，例如在治疗白三烯参与的疾病，如过敏或炎症性疾病，或内毒素性或创伤性休克症状的治疗中。本发明还提供了包含新衍生物的药物组合物，用于这种治疗，以及用于制造新衍生物的方法和中间体。

  公开号：

  US05286740A1

文献信息

• 一种金属单质还原卤代氟烷烃与烯烃制备氟代烷烃取代化合物的方法
  申请人：中山大学

  公开号：CN113121295B

  公开（公告）日：2022-06-03

  本发明公开了一种氟代烷烃取代化合物的方法，包括以下步骤：以含碳碳双键的化合物和卤代氟烷烃为原料，以金属单质为还原剂，以含有活性质子的物质为氢源，发生加成反应，制得同时氢取代和氟烷基取代的的化合物，即得所述氟代烷烃取代化合物。本发明首次以金属单质为还原剂，以含有活性氢的化合物为氢源，实现了在烯烃的两端分别引入一个氢原子和一个氟烷基，只需经一步反应即可，反应过程条件温和，反应原料廉价易得，成本低廉，所有反应试剂均绿色环保；且反应的底物适用性强，只要结构中存在碳碳双键，均可参与反应，不受双键碳原子上取代基种类的影响，且产物的产率好。