2-氯-6-甲基-4H-吡啶并[1,2-A]嘧啶-4-酮 | 38326-29-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶并嘧啶类
• 中文名称: 2-氯-6-甲基-4H-吡啶并[1,2-A]嘧啶-4-酮
• 英文名称: 2-chloro-6-methyl-4H-pyrido<1,2-a>pyrimidin-4-one
• 英文别名: 2-chloro-6-methyl-4H-pyrido[1,2-a]pyrimidin-4-one；2-chloro-6-methylpyrido[1,2-a]pyrimidin-4-one
• CAS: 38326-29-3
• 化学式: C₉H₇ClN₂O
• 分子量: 194.62
• InChiKey: CNSZRCVSZRVIFV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  32.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-氯-6-甲基-4H-吡啶并[1,2-A]嘧啶-4-酮 在 PPA 作用下， 以 甲醇 为溶剂， 反应 3.0h， 生成 methyl <(N-6-methyl-2-pyridyl)carbamoyl>acetate
  参考文献：
  名称：

  氮桥头化合物。第65部分†。4 H-吡啶并[1,2- a ]嘧啶-4-酮的Vilsmeier-haack甲酰化。第6 ‡

  摘要：

  2-取代的3-甲酰基-4- ħ -吡啶并[1,2-一个]嘧啶-4-酮可以通过维尔斯迈尔-哈克甲酰化与二甲基甲酰胺，磷酰氯只对4络合物synthethized ħ -吡啶并[1,2- a ]嘧啶-4-酮，其在2位含有具有电子释放共振效应的取代基。产物通过uv，ir和1 H nmr光谱表征。

  DOI：

  10.1002/jhet.5570230507
• 作为产物：
  描述：

  ethyl 3-[(6-methylpyridin-2-yl)amino]-3-oxopropanoate 在 PPA 、 碳酸氢钠 、 三氯氧磷 作用下， 生成 2-氯-6-甲基-4H-吡啶并[1,2-A]嘧啶-4-酮
  参考文献：
  名称：

  Nitrogen-Bridgehead Compounds; 40¹. Cyclization in Phosphoryl Chloride-Polyphosphoric Acid Mixture

  摘要：

  DOI：

  10.1055/s-1984-30763

文献信息

• Electronic structure of 4<i>H</i>-pyrido[1,2-<i>a</i>]pyrimidin-4-ones
  作者：Gábor Horváth、István Hermecz、Ágnes Horváth、Marianna Pongor-Csákvári、Levente Pusztay、Árpád István Kiss、László Czakó、Osman Hassan Abdirizak

  DOI：10.1002/jhet.5570220255

  日期：1985.3

  The characteristic features of ir and uv spectra of 43 4H-pyrido[1,2-a]pyrimidin-4-one derivatives with electron donor or acceptor groups in position 3, and positions 6, 7, 8, or 9, respectively, have been systematically studied. On the basis of the spectra some conclusions have been drawn for the molecular structure. The negative solvent effect of the lowest-energy π → π* transition is investigated

  分别在3位和6、7、8或9位带有电子给体或受体的43 4 H-吡啶并[1,2- a ]嘧啶-4-酮衍生物的ir和uv光谱的特征，已经被系统地研究过了。根据光谱，得出了分子结构的一些结论。通过PPP方法研究了最低能量π→π*跃迁的负溶剂效应。
• Synthesis, antiplatelet activity and comparative molecular field analysis of substituted 2-amino-4 H -pyrido[1,2- a ]pyrimidin-4-ones, their congeners and isosteric analogues
  作者：Giorgio Roma、Nunzia Cinone、Mario Di Braccio、Giancarlo Grossi、Giuliana Leoncini、Maria Grazia Signorello、Angelo Carotti

  DOI：10.1016/s0968-0896(00)00010-9

  日期：2000.4

  2-(1-Piperazinyl)-4H-pyrido[1,2-a]pyrimidin-4-one (5a) is a recently described in vitro inhibitor of human platelet aggregation which specifically inhibits the activity of high affinity cAMP phosphodiesterase. A number of substitution derivatives, isosteres, and analogues of 5a were now synthesized and tested in vitro for their inhibitory activity on human platelet aggregation induced in platelet-rich plasma by ADP, collagen, or the Ca2+ ionophore A23187. Among the most effective compounds, the 6-methyl, 8-methyl and 6,8-dimethyl derivatives of 5a resulted nearly as active as the lead when platelet aggregation was induced by ADP or A23187, but less active when collagen was the inducer. On the basis of present results and those previously obtained by us in this and 2-aminochromone structural fields, we have developed a statistically significant 3-D QSAR model, using comparative molecular field analysis (CoMFA), describing the variation of the antiplatelet activity in terms of molecular steric and electrostatic potential changes. (C) 2000 Elsevier Science Ltd. All rights reserved.
• HORVATH, G.;HERMECZ, I.;HORVATH, A.;PONGOR-CSAKVARI, M.;PUSZTAY, L.;KISS,+, J. HETEROCYCL. CHEM., 1985, 22, N 2, 481-489
  作者：HORVATH, G.、HERMECZ, I.、HORVATH, A.、PONGOR-CSAKVARI, M.、PUSZTAY, L.、KISS,+

  DOI：——

  日期：——
• Nitrogen bridgehead compounds. Part<b>65</b>. Vilsmeier-haack formylation of 4<i>H</i>-pyrido[1,2-<i>a</i>]pyrimidin-4-ones. Part<b>6</b>
  作者：ÁGnes Horváth、István Hermecz

  DOI：10.1002/jhet.5570230507

  日期：1986.9

  2-Substituted 3-formyl-4H-pyrido[1,2-a]pyrimidin-4-ones can be synthethized by Vilsmeier-Haack formylation with the dimethylformamide-phosphoryl chloride complex only from those 4H-pyrido[1,2-a]pyrimidin-4-ones which contain a substituent with electron-releasing resonance effect in position 2. The products were characterized by uv, ir and 1H nmr spectroscopy.

  2-取代的3-甲酰基-4- ħ -吡啶并[1,2-一个]嘧啶-4-酮可以通过维尔斯迈尔-哈克甲酰化与二甲基甲酰胺，磷酰氯只对4络合物synthethized ħ -吡啶并[1,2- a ]嘧啶-4-酮，其在2位含有具有电子释放共振效应的取代基。产物通过uv，ir和1 H nmr光谱表征。
• Nitrogen-Bridgehead Compounds; 40¹. Cyclization in Phosphoryl Chloride-Polyphosphoric Acid Mixture
  作者：István Hermecz、Ágnes Horváth、Lelle Vasvári-Debreczy、Zoltán Mészáros

  DOI：10.1055/s-1984-30763

  日期：——