methyl 4-<2-(2,4-diamino-6-pteridinyl)-1-ethylethenyl>benzoate | 151071-45-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 蝶啶及其衍生物
• 英文名称: methyl 4-<2-(2,4-diamino-6-pteridinyl)-1-ethylethenyl>benzoate
• 英文别名: Methyl 4-[1-(2,4-diaminopteridin-6-yl)but-1-en-2-yl]benzoate
• CAS: 151071-45-3
• 化学式: C₁₈H₁₈N₆O₂
• 分子量: 350.38
• InChiKey: ISJFILSPIXMSEB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  26
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  130
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  methyl 4-<2-(2,4-diamino-6-pteridinyl)-1-ethylethenyl>benzoate 在 platinum(IV) oxide sodium hydroxide 、 氢气 、 溶剂黄146 、 三乙胺 作用下， 以 二甲基亚砜 、 N,N-二甲基甲酰胺 为溶剂， 反应 38.67h， 生成 2-methylpropoxycarbonyl 4-[1-(2,4-diaminopteridin-6-yl)butan-2-yl]benzoate
  参考文献：
  名称：

  Analogues of the Potent Nonpolyglutamatable Antifolate N^α-(4-Amino-4-deoxypteroyl)-N^δ-hemiphthaloyl-l-ornithine (PT523) with Modifications in the Side Chain, p-Aminobenzoyl Moiety, or 9,10-Bridge:  Synthesis and in Vitro Antitumor Activity

  摘要：

  Seven N-alpha-(4-amino-4-deoxypteroyl)-N-sigma-hemiphtha (2, PT523) analogues were synthesized by modifications of the literature synthesis of the corresponding AMT (1) analogues and were tested as inhibitors of tumor cell growth. in growth assays against cultured CCRF-CEM human leukemic cells exposed to drug for 72 h, the IC50 values of analogues in which N-10 was replaced by CH2 and CHMe were found to be 0.55 +/- 0.07 and 0.63 +/- 0.08 nM, and thus these analogues are more potent than 1 (IC50 = 4.4 +/- 1.0 nM) or 2 (IC50 = 1.5 +/-: 0.39 nM). The 10-ethyl-10-deaza analogue of 2 (IC50 = 1.2 +/- 0.25 nM) was not statistically different from 2 but was more potent than edatrexate, the 10-ethyl-10-deaza analogue of 1, which had an IC50 of 3.3 +/- 0.36 nM. In contrast, the analogue of 2 with both an ethyl and a CO2Me group at the 10-position had an IC50 of 54 +/- 4.9 nM, showing this modification to be unfavorable. The 4-amino-1-naphthoic acid analogue of 2 had an IC50 Of 1.2 +/- 0.22 nM, indicating that replacement of the p-aminobenzoic acid (pABA) moiety does not diminish cytotoxicity. The analogues in which the (CH2)(3) Side chain was replaced by slightly longer CH2SCH2 and (CH2)(2)-SCH2 groups gave IC50 values of 4.4 +/- 1.1 and 5.0 +/- 0.56 nM and thus were somewhat less potent than the parent molecule. However the analogues in which the aromatic COOH group was at the meta and para positions of the phthaloyl ring had IC50 values of 7.5 +/- 0.47 and 55 +/- 0.07 nM, confirming the low potency we had previously observed with these compounds against other cell lines. Overall, the results in this study support the conclusion that, while the position of the phthaloyl COOH group and the length of the amino acid side chain in 2 are important determinants of cytotoxic potency, changes in the pABA region and 9,10-bridge are well-tolerated and can even increase potency.

  DOI：

  10.1021/jm990630f

文献信息

• Synthesis and antifolate evaluation of 10-ethyl-5-methyl-5,10-dideazaaminopterin and an alternative synthesis of 10-ethyl-10-deazaaminopterin (edatrexate)
  作者：J. R. Piper、C. A. Johnson、G. M. Otter、F. M. Sirotnak

  DOI：10.1021/jm00094a011

  日期：1992.8

  -5,10-dideazapteroic acid methyl ester (9a) and 4-amino-4-deoxy-10-ethyl-10-deazapteroic acid methyl ester (9b). This route to 9b intersects reported synthetic approaches leading to 10-ethyl-10-deazaaminopterin (10-EDAM, edatrexate), an agent now in advanced clinical trials. Thus the Wittig approach affords an alternative synthetic route to 10-EDAM. Remaining steps were ester hydrolysis of 9a,b to

  先前的发现表明5,10-二叠氮杂氨基蝶呤的5,10-二烷基取代的衍生物值得研究，因为潜在的抗叶酸药物提示了10-乙基-5-甲基-5,10-二氮杂氨基蝶呤的合成（12a）。合成路线12a的关键步骤是将6-（溴甲基）-2,4-二氨基-5-甲基吡啶并[2,3-d]嘧啶（7a）衍生的三丁基膦与4-丙酰基苯甲酸甲酯进行Wittig缩合。使用由6-（溴甲基）-2,4-哌啶二胺（7b）制备的三丁基膦烷开发了Wittig缩合反应的条件。每个维蒂希产品8a和8b以75-80％的产率获得。8a和8b在它们的9,10-双键处氢化，得到4-氨基-4-脱氧-10-乙基-5-甲基-5，10-二脱氮杂戊酸甲酯（9a）和4-氨基-4-脱氧-10-乙基-10-脱氮杂戊酸甲酯（9b）。据报道，这种通向9b的途径与合成方法有关，可导致10-乙基-10-deazaaminopterin（10-EDAM，edatrexate），该