3-<4,5-bis(4-methoxyphenyl)thiazol-2-yl>-(E)-propenoic acid | 145150-34-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3-<4,5-bis(4-methoxyphenyl)thiazol-2-yl>-(E)-propenoic acid
• 英文别名: (E)-3-[4,5-bis(4-methoxyphenyl)-1,3-thiazol-2-yl]prop-2-enoic acid
• CAS: 145150-34-1
• 化学式: C₂₀H₁₇NO₄S
• 分子量: 367.425
• InChiKey: KWMUZUPXAGSGAS-VAWYXSNFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  26
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  96.9
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3-<4,5-bis(4-methoxyphenyl)thiazol-2-yl>-(E)-propenoic acid 在 palladium dihydroxide 氢气 作用下， 以 甲醇 、 氯仿 为溶剂， 反应 4.0h， 以31.6%的产率得到3-<4,5-bis(4-methoxyphenyl)thiazol-2-yl>propionic acid
  参考文献：
  名称：

  Antiplatelet Agents Based on Cyclooxygenase Inhibition without Ulcerogenesis. Evaluation and Synthesis of 4,5-Bis(4-methoxyphenyl)-2-substituted-thiazoles

  摘要：

  The syntheses, biological evaluations, and structure-activity relationships of a series of 4,5-bis-( 4-methoxyphenyl)-2-substituted-thiazoles as potent antiplatelet agents with vasodilatory activity are described. 2-Guanidino-4,5-bis(4-methoxyphenyl) thiazole (3), designed from two parent compounds (itazigrel and timegadine), showed inhibitory activity of malondialdehyde (MDA, IC50 = 31 mu M) production which is formed from the cyclooxygenase (CO)-catalyzed oxygenation of arachidonic acid in the synthesis of prostanoids in platelets, with vasodilatory activity (ED(50) 2.0 mu M). Further structure-activity relationship studies on 3 culminated in the preparation of 4,5-bis(4-methoxyphenyl)-2-[(1-methylpiperazin-4-yl)carbonyl] thiazole (10a, FR122047) which exhibited potent inhibitory activity on MDA synthesis in vitro (IC50 = 0.088 mu M) and platelet aggregation in guinea pigs ex vivo (100% inhibition even 6 h after 1.0 mg/kg administration) with vasodilatory activity in vitro (ED(50) = 6.2 mu M). Moreover, 10a demonstrated no ulcerogenesis effect in rats even at 100 mg/kg dosage (safety margin in rats is more than 70 while that of aspirin is only 1.2) in spite of its potent CO inhibition (IC50 = 0.43 mu M(14)), while the use of aspirin, a CO inhibitor and the most popular thromboembolic drug, is restricted by the side effect.(8) Pharmacokinetic studies on 10a have revealed that 10a is detectable in platelet-rich plasma but not in platelet-poor plasma 1 day after oral administration, which indicates that 10a tends to be localized in platelets. This property could be responsible for its low toxicity and reduction of side effects in clinical studies.

  DOI：

  10.1021/jm00034a017
• 作为产物：
  描述：

  茴香偶姻 在 manganese(IV) oxide 、 sodium hydroxide 、 lithium aluminium tetrahydride 、 氯化亚砜 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 乙醇 、 二氯甲烷 、 乙酸乙酯 为溶剂， 反应 15.0h， 生成 3-<4,5-bis(4-methoxyphenyl)thiazol-2-yl>-(E)-propenoic acid
  参考文献：
  名称：

  Antiplatelet Agents Based on Cyclooxygenase Inhibition without Ulcerogenesis. Evaluation and Synthesis of 4,5-Bis(4-methoxyphenyl)-2-substituted-thiazoles

  摘要：

  The syntheses, biological evaluations, and structure-activity relationships of a series of 4,5-bis-( 4-methoxyphenyl)-2-substituted-thiazoles as potent antiplatelet agents with vasodilatory activity are described. 2-Guanidino-4,5-bis(4-methoxyphenyl) thiazole (3), designed from two parent compounds (itazigrel and timegadine), showed inhibitory activity of malondialdehyde (MDA, IC50 = 31 mu M) production which is formed from the cyclooxygenase (CO)-catalyzed oxygenation of arachidonic acid in the synthesis of prostanoids in platelets, with vasodilatory activity (ED(50) 2.0 mu M). Further structure-activity relationship studies on 3 culminated in the preparation of 4,5-bis(4-methoxyphenyl)-2-[(1-methylpiperazin-4-yl)carbonyl] thiazole (10a, FR122047) which exhibited potent inhibitory activity on MDA synthesis in vitro (IC50 = 0.088 mu M) and platelet aggregation in guinea pigs ex vivo (100% inhibition even 6 h after 1.0 mg/kg administration) with vasodilatory activity in vitro (ED(50) = 6.2 mu M). Moreover, 10a demonstrated no ulcerogenesis effect in rats even at 100 mg/kg dosage (safety margin in rats is more than 70 while that of aspirin is only 1.2) in spite of its potent CO inhibition (IC50 = 0.43 mu M(14)), while the use of aspirin, a CO inhibitor and the most popular thromboembolic drug, is restricted by the side effect.(8) Pharmacokinetic studies on 10a have revealed that 10a is detectable in platelet-rich plasma but not in platelet-poor plasma 1 day after oral administration, which indicates that 10a tends to be localized in platelets. This property could be responsible for its low toxicity and reduction of side effects in clinical studies.

  DOI：

  10.1021/jm00034a017