2-chloro-3-oxooctanoic acid ethyl ester | 129620-20-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: 2-chloro-3-oxooctanoic acid ethyl ester
• 英文别名: ethyl 2-chloro-3-oxooctanoate
• CAS: 129620-20-8
• 化学式: C₁₀H₁₇ClO₃
• 分子量: 220.696
• InChiKey: SHYRFCCERZSPDX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  14
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-chloro-3-oxooctanoic acid ethyl ester 在 N-甲基哌嗪 、 sodium hydroxide 、 硫酸 、 红铝 作用下， 以 甲醇 、 二氯甲烷 、 甲苯 、 苯 为溶剂， 反应 49.5h， 生成 (E)-3-(6-methoxy-3-pentylbenzofuran-2-yl)-2-propenoic acid
  参考文献：
  名称：

  Propenyl carboxamide derivatives as antagonists of platelet-activating factor

  摘要：

  A series of N-[4-(3-pyridinyl)butyl] 3-substituted propenyl carboxamide derivatives bearing an unsaturated bicyclic moiety in the 3-position was prepared and evaluated for PAF (platelet activating factor) antagonist activity. These compounds represent conformationally constrained direct analogues of the corresponding potent 5-aryl-pentadienecarboxamides (5). Most of the new compounds were active in a PAF-binding assay employing whole, washed dog platelets as the receptor source and inhibited PAF-induced bronchoconstriction in guinea pigs after intravenous administration. However, oral activity in the PAF-induced bronchoconstriction model was highly sensitive to the nature and substitution of the bicyclic ring system. The most interesting compounds included [R-(E)]-(1-butyl-6-methoxy-2-naphthyl)-N-[1-methyl-4-(3- pyridinyl)butyl]-2-propenamide (4b), [R-(E)]-(3-butyl-6-methoxy-2- benzo[b]thiophene-yl)-N-[1-methyl-4-(3-pyridinyl)butyl]-2-propenamide (4k), and [R-(E)]-(3-butyl-6-methoxy-1-methyl-2-indoly)-N-[1-ethyl-4- (3-pyridinyl)butyl]-2-propenamide (4l) which inhibited PAF-induced broncho-constriction in guinea pigs with IC50s of 3.0-5.4 mg/kg, when the animals were challenged 2 h after drug treatment. They were also highly effective 6 h after a 50 mg/kg oral dose. This study supports the notion that the key remote aromatic ring present in the 5-arylpentadienecarboxamides (5) is preferentially coplanar with the diene system for good PAF antagonist activity.

  DOI：

  10.1021/jm00172a029
• 作为产物：
  描述：

  3-氧代辛酸乙酯 在 磺酰氯 作用下， 以95.6%的产率得到2-chloro-3-oxooctanoic acid ethyl ester
  参考文献：
  名称：

  Propenyl carboxamide derivatives as antagonists of platelet-activating factor

  摘要：

  A series of N-[4-(3-pyridinyl)butyl] 3-substituted propenyl carboxamide derivatives bearing an unsaturated bicyclic moiety in the 3-position was prepared and evaluated for PAF (platelet activating factor) antagonist activity. These compounds represent conformationally constrained direct analogues of the corresponding potent 5-aryl-pentadienecarboxamides (5). Most of the new compounds were active in a PAF-binding assay employing whole, washed dog platelets as the receptor source and inhibited PAF-induced bronchoconstriction in guinea pigs after intravenous administration. However, oral activity in the PAF-induced bronchoconstriction model was highly sensitive to the nature and substitution of the bicyclic ring system. The most interesting compounds included [R-(E)]-(1-butyl-6-methoxy-2-naphthyl)-N-[1-methyl-4-(3- pyridinyl)butyl]-2-propenamide (4b), [R-(E)]-(3-butyl-6-methoxy-2- benzo[b]thiophene-yl)-N-[1-methyl-4-(3-pyridinyl)butyl]-2-propenamide (4k), and [R-(E)]-(3-butyl-6-methoxy-1-methyl-2-indoly)-N-[1-ethyl-4- (3-pyridinyl)butyl]-2-propenamide (4l) which inhibited PAF-induced broncho-constriction in guinea pigs with IC50s of 3.0-5.4 mg/kg, when the animals were challenged 2 h after drug treatment. They were also highly effective 6 h after a 50 mg/kg oral dose. This study supports the notion that the key remote aromatic ring present in the 5-arylpentadienecarboxamides (5) is preferentially coplanar with the diene system for good PAF antagonist activity.

  DOI：

  10.1021/jm00172a029

文献信息

• Synthesis of 2-chloro-3-oxoesters by reaction of the dianion of ethyl 2-chloroacetoacetate with electrophiles
  作者：Verena Specowius、Thomas Rahn、Muhammad Adeel、Stefanie Reim、Holger Feist、Ashot S. Saghyan、Peter Langer

  DOI：10.1007/s00706-012-0897-z

  日期：2013.5

  Abstract2-Chloro-3-oxoalkanoates and related molecules were prepared by regioselective reaction of the dianion of ethyl 2-chloroacetoacetate with alkyl halides and other electrophiles. Graphical Abstract

  摘要通过2-氯乙酰乙酸乙酯的二价阴离子与烷基卤化物和其他亲电试剂的区域选择性反应制备2-氯-3-氧代链烷酸酯和相关分子。 图形概要
• GUTHRIE, ROBERT W.;KAPLAN, GERALD L.;MENNONA, FRANCIS A.;TILLEY, JEFFERSO+, J. MED. CHEM., 33,(1990) N0, C. 2856-2864
  作者：GUTHRIE, ROBERT W.、KAPLAN, GERALD L.、MENNONA, FRANCIS A.、TILLEY, JEFFERSO+

  DOI：——

  日期：——