N-methylglutaramide methyl ester | 131566-90-0

• 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: N-methylglutaramide methyl ester
• 英文别名: Methyl 5-(methylamino)-5-oxopentanoate
• CAS: 131566-90-0
• 化学式: C₇H₁₃NO₃
• 分子量: 159.185
• InChiKey: JEHDYSXPBXDRIU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  戊二酸酐 在 硫酸 作用下， 以 水 为溶剂， 生成 N-methylglutaramide methyl ester
  参考文献：
  名称：

  Conformation-directing effects of a single intramolecular amide-amide hydrogen bond: variable-temperature NMR and IR studies on a homologous diamide series

  摘要：

  We have studied intramolecular hydrogen bonding in a homologous series of diamides (compounds 1-6) in methylene chloride, 9:1 carbon tetrachloride/benzene, and acetonitrile. By correlating variable-temperature H-1 NMR and IR measurements, we have shown that the temperature dependence of the amide proton NMR chemical shift (DELTA-delta/DELTA-T) can provide qualitative (and in some cases quantitative) information on the thermodynamic relationship between the intramolecularly hydrogen bonded and non-hydrogen-bonded states of flexible molecules. Among the hydrogen-bonded ring sizes represented in the diamide series, the intramolecular interaction is particularly enthalpically favorable in the nine-membered hydrogen-bonded ring (compound 4). Variable-temperature IR and NMR data indicate that the internally hydrogen bonded state of diamide 4 is 1.4-1.6 kcal/mol more favorable enthalpically than the non-hydrogen-bonded state, in methylene chloride solution; the non-hydrogen-bonded state is 6.8-8.3 eu more favorable entropically in this solvent. In contrast, there appear to be much smaller enthalpy differences between the internally hydrogen bonded and non-hydrogen-bonded states of diamides 2 and 3. Our findings are important methodologically because the temperature dependences of amide proton chemical shifts are commonly used to elucidate peptide conformation in solution. Our results show that previous "rules" for the interpretation of such data are incomplete. In non-hydrogen-bonding solvents, small amide proton DELTA-delta/DELTA-T values have been taken to mean that the proton is either entirely free of hydrogen bonding or completely locked in an intramolecular hydrogen bond over the temperature range studied. We demonstrate that an amide proton can be equilibrating between intramolecularly hydrogen bonded and non-hydrogen-bonded states and still manifest a small chemical shift temperature dependence (implying that the hydrogen-bonded and non-hydrogen-bonded states are of similar enthalpy).

  DOI：

  10.1021/ja00004a016

文献信息

• Specificity of DNA Alkylation by 1-(2-Chloroethyl)-3-alkyl-3-acyltriazenes Depends on the Structure of the Acyl Group:  Kinetic and Product Studies
  作者：Marilyn B. Kroeger Smith、Brigitte F. Schmidt、Grzegorz Czerwinski、Lisa A. Taneyhill、Emily J. Snyder、Adam M. Kline、Christopher J. Michejda、Richard H. Smith

  DOI：10.1021/tx950155y

  日期：1996.1.1

  principal reaction product. In the absence of esterase, the order of DNA alkylation for all of the acyltriazenes did not correlate with their respective rates of decomposition, leading to the conclusion that the triazenes did not decompose by the expected mode of uncatalyzed N(2)-N(3) heterolyic cleavage. The major DNA alkylation product from the N(3)-methyltriazenes was 7-methylguanine, instead of the expected

  单独研究了小牛胸腺DNA与十个具有不同酰基侧链结构的1-（2-氯乙基）-3-烷基-3-酰基苯甲酰氮的反应，或在pH 7.0磷酸盐缓冲液中在猪肝酯酶存在下的反应。在几种关键的三氮烯中，酰基取代基包含一个游离的羧酸基团。在反应混合物中存在酯酶的情况下，所得的DNA烷基化水平可能与三氮烯分解的动力学速率相关。在这些条件下，主要的分解途径涉及母体三氮烯的脱酰作用并最终产生链烷重氮离子。该中间体随后将DNA-鸟嘌呤烷基化，得到7-烷基鸟嘌呤作为主要反应产物。在没有酯酶的情况下，DNA烷基化的顺序对所有的acyltriazenes都不与它们各自的分解速率相关，从而得出结论，三氮烯不会被未催化的N（2）-N（3）杂多裂解的预期模式分解。N（3）-甲基三氮烯的主要DNA烷基化产物是7-甲基鸟嘌呤，而不是预期的7-（氯乙基）-和7-（羟乙基）鸟嘌呤，这表明酰基正在被水解。但是，与预测相反，在该位置具有N（3
• Piperidine derivatives having ccr3 antagonism
  申请人：Matsumoto Yoshiyuki

  公开号：US20070032525A1

  公开（公告）日：2007-02-08

  The invention provides low molecular compounds having activity which inhibits binding of CCR3 ligands to CCR3 on target cells, i.e. CCR3 antagonists. The invention also provides compounds represented by formula (I) below, pharmaceutically acceptable acid adducts thereof, or pharmaceutically acceptable C 1 -C 6 alkyl adducts thereof, as well as pharmaceutical compositions comprising them as effective ingredients, which are useful for treatment or prevention of diseases associated with CCR3, such as asthma and allergic rhinitis.

  本发明提供了具有抑制CCR3配体结合到靶细胞CCR3的活性的低分子化合物，即CCR3拮抗剂。本发明还提供了由下式（I）表示的化合物，其药学上可接受的酸加合物或药学上可接受的C1-C6烷基加合物，以及包含它们作为有效成分的制药组合物，用于治疗或预防与CCR3相关的疾病，例如哮喘和过敏性鼻炎。
• Substituted Pyrazinone Derivatives as Alpha2C-Adrenoreceptor Antagonists
  申请人：Andre-Gil Jose Ignacio

  公开号：US20080269251A1

  公开（公告）日：2008-10-30

  The present invention concerns substituted pyrazinone derivatives according to the general Formula (I) a pharmaceutically acceptable acid or base addition salt thereof, a stereochemically isomeric form thereof, an N-oxide form thereof or a quaternary ammonium salt thereof, wherein the variables are defined in Claim 1 , having selective α 2C -adrenoceptor antagonist activity. It further relates to their preparation, compositions comprising them and their use as a medicine. The compounds according to the invention are useful for the prevention and/or treatment of central nervous system disorders, mood disorders, anxiety disorders, stress-related disorders associated with depression and/or anxiety, cognitive disorders, personality disorders, schizoaffective disorders, Parkinson's disease, dementia of the Alzheimer's type, chronic pain conditions, neurodegenerative diseases, addiction disorders, mood disorders and sexual dysfunction.
• US7517875B2
  申请人：——

  公开号：US7517875B2

  公开（公告）日：2009-04-14
• US8119742B2
  申请人：——

  公开号：US8119742B2

  公开（公告）日：2012-02-21