5-phenyl-5H-chromeno[4,3-d]pyrimidin-2-amine

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 5-phenyl-5H-chromeno[4,3-d]pyrimidin-2-amine
• 化学式: C₁₇H₁₃N₃O
• 分子量: 275.31
• InChiKey: QEEBOEMLZSXFQG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  21
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  61
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  黄烷酮 在 sodium ethanolate 作用下， 以 乙醇 为溶剂， 反应 0.75h， 生成 5-phenyl-5H-chromeno[4,3-d]pyrimidin-2-amine
  参考文献：
  名称：

  New polycyclic pyrimidine derivatives with antiplatelet in vitro activity: synthesis and pharmacological screening

  摘要：

  The preparation and the pharmacological screening of novel anti-aggregatory/antiphlogistic polycyclic pyrimidine derivatives are described. The compounds were developed starting from bioactive 2-aminobenzopyranopyrimidine derivatives in order to assess the importance of the benzopyrano[4,3-d]pyrimidine structure and the role of an amino basic moiety in position 2. Antiplatelet activity was assessed in vitro against ADP and arachidonic acid-induced aggregation in guinea-pig plasma. Anti-inflammatory analgesic/antipyretic activities were studied in rat paw oedema, mouse writhing test and E coli-induced rat fever. Ulcerogenic and gastroprotective effects were also investigated in vivo on rat gastric mucosa. Among the tested compounds, the 5-substituted benzopyranopyrimidine derivatives 3d and 4d proved to be the most active antiplatelet agents as potent as acetylsalicylic acid against arachidonic acid-stimulated aggregation. Furthermore the 2-methylthio derivative 4d was endowed with greater efficacy against ADP aggregation suggesting that additional non-TXA(2) dependent mechanisms are involved in its biological activity. Orally administered at 100 mg kg(-1) in rats this latter compound displayed antiphlogistic acitivity comparable to indomethacin (10 mg kg(-1)) coupled with an unusual gastroprotective effect on ethanol-induced ulcers. In conclusion, these findings indicate that the 5-pyrrolidino-2-methylthiobenzopyrano[4d] fulfils the chemical requirements to exhibit antiplatelet activity associated with gastroprotective effect. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(00)00272-8

文献信息

• Tandem allylic amination/ring-opening/oxa-Michael addition reactions of chromone-derived Morita–Baylis–Hillman acetates with amines
  作者：Chen Wu、Hao Zeng、Li Liu、Dong Wang、Yongjun Chen

  DOI：10.1016/j.tet.2010.11.089

  日期：2011.2

  The reaction of chromone-derived Morita–Baylis–Hillman acetates with amines was developed via tandem allylic amination/chromone ring-opening/oxa-Michael addition to provide 2-substituted-3-aminomethy-lene-chromans in convenient and efficient way, and subsequent applied in the synthesis of benzopyranylpyrimidine compounds. Various amines exhibited different reactivities depending on their molecular

  色氨酸衍生的森田-贝利斯-希尔曼乙酸盐与胺的反应是通过串联烯丙基胺化/色酮开环/ oxa-Michael加成反应开发的，可方便有效地提供2-取代的3-氨基甲基-len-chromans。随后用于合成苯并吡喃基嘧啶化合物。各种胺根据其分子结构特征表现出不同的反应性。