5-Benzo[1,3]dioxol-5-yl-6-ethyl-pyrimidine-2,4-diamine | 182425-70-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并间二氧杂环戊烯类
• 英文名称: 5-Benzo[1,3]dioxol-5-yl-6-ethyl-pyrimidine-2,4-diamine
• 英文别名: 5-(1,3-benzodioxol-5-yl)-6-ethylpyrimidine-2,4-diamine
• CAS: 182425-70-3
• 化学式: C₁₃H₁₄N₄O₂
• 分子量: 258.28
• InChiKey: PHDBSFMHZZSTHJ-UHFFFAOYSA-N

物化性质

• 沸点：
  530.0±60.0 °C(Predicted)
• 密度：
  1.361±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  96.3
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  1,3-苯并二氧杂环戊烯-5-乙腈 在 sodium ethanolate 作用下， 以 乙醚 、 乙醇 为溶剂， 反应 11.0h， 生成 5-Benzo[1,3]dioxol-5-yl-6-ethyl-pyrimidine-2,4-diamine
  参考文献：
  名称：

  Potential Antimalarials. XXII. Some 2,4-Diamino-5-(3- and 4-trifluoromethylphenyl and 3,4-methylenedioxyphenyl)pyrimidines

  摘要：

  一系列含有3'-和4'-三氟甲基和3',4'-亚甲二氧基基团的10个嘧啶胺类似物已经制备并针对Plasmodium falciparum的FC-27和K-1菌株进行了体外抗疟活性测试。其中几种化合物对于对药物敏感的FC-27菌株的活性几乎与嘧啶胺相当，而像嘧啶胺一样，它们对于对药物耐药的K-1菌株的活性要低得多。然而，4'-三氟甲基化合物显示出较小的差异。

  DOI：

  10.1071/ch9960647

文献信息

• Potential Antimalarials. XXII. Some 2,4-Diamino-5-(3- and 4-trifluoromethylphenyl and 3,4-methylenedioxyphenyl)pyrimidines
  作者：GB Barlin、B Kotecka、KH Rieckmann

  DOI：10.1071/ch9960647

  日期：——

  A series of 10 pyrimethamine analogues containing 3'- and 4'-trifluoromethyl and 3',4'-methylenedioxy groups has been prepared and tested for in vitro antimalarial activity against the FC-27 and K-1isolates of Plasmodium falciparum. Several of these compounds were almost as active as pyrimethamine against the drug-sensitive FC-27 isolate, and like pyrimethamine , they were much less active against the drug-resistant K-1 isolate. The 4'-trifluoromethyl compunds, however, showed much smaller differences.

  一系列含有3'-和4'-三氟甲基和3',4'-亚甲二氧基基团的10个嘧啶胺类似物已经制备并针对Plasmodium falciparum的FC-27和K-1菌株进行了体外抗疟活性测试。其中几种化合物对于对药物敏感的FC-27菌株的活性几乎与嘧啶胺相当，而像嘧啶胺一样，它们对于对药物耐药的K-1菌株的活性要低得多。然而，4'-三氟甲基化合物显示出较小的差异。
• Development of 2,4-Diaminopyrimidines as Antimalarials Based on Inhibition of the S108N and C59R+S108N Mutants of Dihydrofolate Reductase from Pyrimethamine-Resistant <i>Plasmodium </i><i>f</i><i>alciparum</i>
  作者：Bongkoch Tarnchompoo、Chawanee Sirichaiwat、Worrapong Phupong、Chakapong Intaraudom、Worachart Sirawaraporn、Sumalee Kamchonwongpaisan、Jarunee Vanichtanankul、Yodhathai Thebtaranonth、Yongyuth Yuthavong

  DOI：10.1021/jm010131q

  日期：2002.3.1

  The reduced binding of pyrimethamine to Ser 108Asn (S108N) mutants of parasite dihydrofolate reductase (DHFR), which forms the basis of resistance of Plasmodium falcipartum to pyrimethamine, is largely due to steric constraint imposed by the bulky side chain of N108 on Cl of the 5-p-Cl-phenyl group. This and other S108 mutants with bulky side chains all showed reduced binding to pyrimethamine and cycloguanil. Less effect on binding to some bulky mutants was observed for trimethoprim, with greater flexibility for the 5-substituent. S108N DHFR also binds poorly with other pyrimethamine derivatives with bulky groups in place of the p-Cl, and the binding was generally progressively poorer for the double (C59R+S108N) mutant. Removal of the p-Cl or replacement with m-Cl led to better binding with the mutant DHFRs. Pyrimethamine analogues with unbranched hydrophobic 6-substituents showed generally good binding with the mutant DHFRs. A number of compounds were identified with high affinities for both wild-type and mutant DHFRs, with very low to no affinity to human DHFR. Some of these compounds show good antimalarial activities against pyrimethamine-resistant P. falciparum containing the mutant DHFRs with low cytotoxicity to three mammalian cell lines.