Methyl 5-(4-methylphenyl)-1,3-oxazole-4-carboxylate | 89204-96-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: Methyl 5-(4-methylphenyl)-1,3-oxazole-4-carboxylate
• CAS: 89204-96-6
• 化学式: C₁₂H₁₁NO₃
• 分子量: 217.224
• InChiKey: FVHHZYPZXJMVFQ-UHFFFAOYSA-N

物化性质

• 沸点：
  362.6±30.0 °C(Predicted)
• 密度：
  1.174±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  52.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Methyl 5-(4-methylphenyl)-1,3-oxazole-4-carboxylate 在 盐酸 作用下， 以 水 为溶剂， 生成 2-巯基-5-对甲苯基-3H-咪唑-4-羧酸甲酯
  参考文献：
  名称：

  Syntheses of 2-mercapto-4-substituted imidazole derivatives with antiinflammatory properties.

  摘要：

  通过 C-酰基氨基甲酯（4）与硫氰酸钾的反应，合成了各种 2-巯基-4-取代的-5-咪唑羧酸盐（5）。咪唑羧酸盐（5）水解后再脱羧，可得到 2-巯基-4-取代的咪唑（8），收率很高。此外，氨基酮（9）与硫氰酸钾反应也可直接得到咪唑（8）。这些化合物（8）对卡拉胶诱导的大鼠爪水肿具有抗炎活性。在测试的化合物中，2-巯基-4-（3-噻吩基）咪唑（8r）的治疗指数值最高，与甲灭酸的治疗指数值相当。

  DOI：

  10.1248/cpb.32.2536

文献信息

• Syntheses of 5-substituted oxazole-4-carboxylic acid derivatives with inhibitory activity on blood platelet aggregation.
  作者：YASUHIKO OZAKI、SADAO MAEDA、TAMEO IWASAKI、KAZUO MATSUMOTO、AKIO ODAWARA、YASUHIKO SASAKI、TAKASHI MORITA

  DOI：10.1248/cpb.31.4417

  日期：——

  Methyl 5-substituted oxazole-4-carboxylates were synthesized by the reaction of methyl α-isocyanoacetate with acylating reagents in the presence of bases. The oxazole methyl esters were converted into the carboxylic acids and the carboxamides. Then, N-alkyl-oxazole-4-carboxamides were prepared through the oxazole-4-carboxylic acid chloride. Furthermore, 2-substituted oxazoles were synthesized by cyclization of N-acyl-α-benzoylglycine methyl esters. which were obtained by acylation of α-benzoylglycine methyl ester followed by ammonolysis of the resulting oxazole methyl esters. These oxazole compounds were evaluated for inhibitory activity on blood platelet aggregation in vitro and ex vivo. Some of these compounds showed the inhibitory activity comparable to that of aspirin. Of these, 5-(3, 4, 5-trimethoxyphenyl) oxazole-4-carboxamide was the most active compound in the ex vivo test.

  α-异氰基乙酸甲酯在碱存在下与酰化试剂反应，合成了 5-取代的噁唑-4-羧酸甲酯。噁唑甲酯被转化成羧酸和羧酰胺。然后，通过噁唑-4-羧酰氯制备出 N-烷基噁唑-4-羧酰胺。此外，还通过 N-酰基-α-苯甲酰基甘氨酸甲酯的环化合成了 2-取代的噁唑，这些噁唑甲酯是通过α-苯甲酰基甘氨酸甲酯的酰化，然后对生成的噁唑甲酯进行氨解而得到的。对这些噁唑化合物进行了体外和体内血小板聚集抑制活性评估。其中一些化合物的抑制活性与阿司匹林相当。其中，5-(3, 4, 5-三甲氧基苯基) 恶唑-4-甲酰胺是体内外试验中活性最强的化合物。
• Isoxazole derivatives as peroxisome proliferator-activated receptors agonists
  申请人：Fukui Yoshikazu

  公开号：US20070054902A1

  公开（公告）日：2007-03-08

  A compound of formula (I): (wherein R 1 -R 10 are each independently hydrogen, halogen, optionally substituted lower alkyl or the like, X 1 is —O—, —S—, —NR 11 — (wherein R 11 is hydrogen, lower alkyl or the like), —CR 12 R 13 CO—, —(CR 12 R 13 )mO—, —O(CR 12 R 13 )m- (wherein R 12 and R 13 are each independently hydrogen or lower alkyl and m is a integer between 1 and 3) or the like, X 2 is a bond, —O—, —S—, —NR 14 — (wherein R 14 is hydrogen, lower alkyl or the like, R 14 and R 6 can be taken together with the neighboring atom to form a ring) or —CR 15 R 16 — (wherein R 15 and R 16 are each independently hydrogen or lower alkyl, R 15 and R 6 or R 10 can be taken together with the neighboring carbon atom to form a ring, R 16 and R 9 can be joined together to form a bond), X 3 is COOR 17 , C(═NR 17 )NR 18 OR 19 or the like), a pharmaceutically acceptable salt or a solvate thereof.

  化合物的化学式为（I）：（其中R1-R10各自独立地为氢，卤素，可选择性取代的低碳基或类似物，X1为—O—，—S—，—NR11—（其中R11为氢，低碳基或类似物），—CR12R13CO—，—（CR12R13）mO—，—O（CR12R13）m-（其中R12和R13各自独立地为氢或低碳基，m为1到3之间的整数）或类似物，X2为键，—O—，—S—，—NR14—（其中R14为氢，低碳基或类似物，R14和R6可以与相邻的原子结合形成环）或—CR15R16—（其中R15和R16各自独立地为氢或低碳基，R15和R6或R10可以与相邻的碳原子结合形成环，R16和R9可以结合在一起形成键），X3为COOR17，C（═NR17）NR18OR19或类似物），其药学上可接受的盐或溶剂化物。
• MAEDA, SADAO;SUZUKI, MAMORU;IWASAKI, TAMEO;MATSUMOTO, KAZUO;IWASAWA, YOSH+, CHEM. AND PHARM. BULL., 1984, 32, N 7, 2536-2543
  作者：MAEDA, SADAO、SUZUKI, MAMORU、IWASAKI, TAMEO、MATSUMOTO, KAZUO、IWASAWA, YOSH+

  DOI：——

  日期：——
• Syntheses of 2-mercapto-4-substituted imidazole derivatives with antiinflammatory properties.
  作者：SADAO MAEDA、MAMORU SUZUKI、TAMEO IWASAKI、KAZUO MATSUMOTO、YOSHIO IWASAWA

  DOI：10.1248/cpb.32.2536

  日期：——

  Various 2-mercapto-4-substituted-5-imidazolecarboxylates (5) were synthesized by the reaction of C-acylamino acid methyl esters (4) with potassium thiocyanate. Hydrolysis followed by decarboxylation of the imidazole carboxylates (5) gave 2-mercapto-4-substituted imidazoles (8) in good yields. Furthermore, the imidazoles (8) were also directly obtained by the reaction of aminoketones (9) with potassium thiocyanate. These compounds (8) exhibited antiinflammatory activities against carrageenan-induced rat paw edema. Among the compounds tested, 2-mercapto-4-(3-thienyl) imidazole (8r) showed the best therapeutic index value, giving a value comparable to that of mefenamic acid.

  通过 C-酰基氨基甲酯（4）与硫氰酸钾的反应，合成了各种 2-巯基-4-取代的-5-咪唑羧酸盐（5）。咪唑羧酸盐（5）水解后再脱羧，可得到 2-巯基-4-取代的咪唑（8），收率很高。此外，氨基酮（9）与硫氰酸钾反应也可直接得到咪唑（8）。这些化合物（8）对卡拉胶诱导的大鼠爪水肿具有抗炎活性。在测试的化合物中，2-巯基-4-（3-噻吩基）咪唑（8r）的治疗指数值最高，与甲灭酸的治疗指数值相当。