3-methyl-6-(4-hydroxyanilino)uracil | 83983-30-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 3-methyl-6-(4-hydroxyanilino)uracil
• 英文别名: 6-(4-Hydroxy-anilino)-3-methyl-2,4(1H,3H)-pyrimidindion；6-((4-hydroxyphenyl)amino)-3-methylpyrimidine-2,4(1H,3H)-dione；6-(4-hydroxyanilino)-3-methyl-1H-pyrimidine-2,4-dione
• CAS: 83983-30-6
• 化学式: C₁₁H₁₁N₃O₃
• 分子量: 233.227
• InChiKey: SGKOFEMHPKVBFB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  81.7
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-methyl-6-(4-hydroxyanilino)uracil 在 PPA 、 水 、 三氯氧磷 作用下， 反应 24.08h， 生成 7-Hydroxy-3-methyl-2,4(1H,3H)-pyrimido<4,5-b>chinolindion
  参考文献：
  名称：

  取代的 5-去氮杂黄素，第 4 版。供体取代的 5-去氮杂恶嗪的合成

  摘要：

  供体 - 取代的 6 - 苯胺尿嘧啶衍生物 6 与 Vilsmeier 试剂的反应导致三种不同的反应，具体取决于取代：a) m 位的供体导致 8- 取代的 5- 脱氮杂恶嗪 8，b) p- 中的供体5-甲酰衍生物 11 在第 1 位获得，c) 与强间位二甲氨基供体，额外的甲酰化和原位环化成 6-二甲氨基-9-甲酰-5-脱氮杂恶嗪 9 与形成8. 使用乙烯基脒7 作为中间体来解释这些反应。

  DOI：

  10.1002/ardp.19823151111
• 作为产物：
  描述：

  对氨基苯酚 、 6-氯-3-甲基尿嘧啶 反应 0.5h， 以79%的产率得到3-methyl-6-(4-hydroxyanilino)uracil
  参考文献：
  名称：

  取代的 5-去氮杂黄素，第 4 版。供体取代的 5-去氮杂恶嗪的合成

  摘要：

  供体 - 取代的 6 - 苯胺尿嘧啶衍生物 6 与 Vilsmeier 试剂的反应导致三种不同的反应，具体取决于取代：a) m 位的供体导致 8- 取代的 5- 脱氮杂恶嗪 8，b) p- 中的供体5-甲酰衍生物 11 在第 1 位获得，c) 与强间位二甲氨基供体，额外的甲酰化和原位环化成 6-二甲氨基-9-甲酰-5-脱氮杂恶嗪 9 与形成8. 使用乙烯基脒7 作为中间体来解释这些反应。

  DOI：

  10.1002/ardp.19823151111

文献信息

• Flavin Activation by Intramolecular Acid Catalysis at N(1) Position
  作者：Seiji Shinkai、Sayuri Kawanabe、Akito Kawase、Toshiro Yamaguchi、Osamu Manabe、Shigeharu Harada、Hideki Nakamura、Nobutami Kasai

  DOI：10.1246/bcsj.61.2095

  日期：1988.6

  In order to assess the effect of intramolecular acid catalysis on the specific flavin reactivities, 3-methyl-10-(2-hydroxyphenyl)isoalloxazine (1(2OH)) and 3-methyl-10-(2-hydroxy-1-naphthyl)isoalloxazine (2(2OH)) were synthesized and the redox properties were compared with those of reference flavins such as 3-methyl-10-(2-methoxyphenyl)isoalloxazine (1(2OMe)) and 3-methyl-10-(2-methoxy-1-naphthyl)isoalloxazine (2(2OMe)). The pKa values for 1(2OH) and 2(2OH) were determined to be 7.7 and 7.0, respectively, which were lower than that of 3-methyl-10-(4-hydroxyphenyl)isoalloxazine (1(4OH): pKa 8.6). It is thus unlikely that 2′-OH and N(1) form a hydrogen bond at the initial state of the reaction (i.e., at the oxidized state). The X-ray crystallographic studies indicated that the phenyl ring makes an angle of 79.7° with the isoalloxazine ring and the 2′-OH group forms a hydrogen bond with methanol included in the crystal lattice. In acetonitrile at 30 °C 1-benzyl-1,4-dihydronicotinamide was not oxidized by 1(2OMe), 1(4OH), and 2(2OMe). On the other hand, the oxidation took place with 1(2OH) and 2(2OH) which have an acidic OH group at the 2′-position of the 10-aryl substituent. The presence of the intramolecular acid catalysis suggests that 2′-OH and N(1) can interact at least at the transition state or at the final state of the reaction (i.e., at the reduced state). In general, the oxidized flavin adopts a “planar” structure which is sterically tense while the reduced flavin adopts a “bent” structure which is sterically relaxed. As the structure of the transition state is more or less similar to the reduced form, the hydrogen-bonding interaction could increase on going from the tense initial state to the relaxed transition state. This is a novel example for acid catalysis in flavin-mediated reactions.

  为了评估分子内酸催化对特定黄素反应性的影响，合成了3-甲基-10-(2-羟基苯基)异黄素（1(2OH)）和3-甲基-10-(2-羟基-1-萘基)异黄素（2(2OH)），并将其氧化还原性质与参考黄素如3-甲基-10-(2-甲氧基苯基)异黄素（1(2OMe)）和3-甲基-10-(2-甲氧基-1-萘基)异黄素（2(2OMe)）进行了比较。1(2OH)和2(2OH)的pKa值分别为7.7和7.0，均低于3-甲基-10-(4-羟基苯基)异黄素（1(4OH)：pKa 8.6）。因此，在反应的初始状态（即氧化状态）下，2′-OH和N(1)形成氢键的可能性较小。X射线晶体学研究表明，苯环与异黄素环之间的夹角为79.7°，而2′-OH基团与晶体格中包含的甲醇形成氢键。在30 °C的乙腈中，1-苯基-1,4-二氢烟酰胺未被1(2OMe)、1(4OH)和2(2OMe)氧化。另一方面，1(2OH)和2(2OH)（在10-芳基取代基的2′位置具有酸性OH基团）发生了氧化。分子内酸催化的存在表明，2′-OH和N(1)至少可以在反应的过渡态或最终状态（即还原状态）下相互作用。一般来说，氧化的黄素采用“平面”结构，立体张力较大，而还原的黄素则采用“弯曲”结构，立体张力较小。由于过渡态的结构或多或少与还原形式相似，因此在从紧张的初始状态转变为放松的过渡状态时，氢键相互作用可能会增强。这是黄素介导反应中酸催化的新颖例子。
• Flavins as potential antimalarials. 2. 3-Methyl-10-(substituted-phenyl)flavins
  作者：William B. Cowden、Peter K. Halladay、Ross B. Cunningham、Nicholas H. Hunt、Ian A. Clark

  DOI：10.1021/jm00110a009

  日期：1991.6

  A series of 3-methyl-10-(substituted-phenyl)flavins was prepared and tested for antimalarial activity against the lethal parasite Plasmodium vinckei in mice. Several of these analogues were found to be effective antimalarial agents. A quantitative structure-activity relationship study was undertaken with 44 analogues and no satisfactory relationship could be established.
• COWDEN, WILLIAM B.;HALLADAY, PETER K.;CUNNINGHAM, ROSS B.;HUNT, NICHOLAS +, J. MED. CHEM., 34,(1991) N, C. 1818-1822
  作者：COWDEN, WILLIAM B.、HALLADAY, PETER K.、CUNNINGHAM, ROSS B.、HUNT, NICHOLAS +

  DOI：——

  日期：——
• Substituierte 5-Deazaflavine, 4. Mitt. Synthese Donator-substituierter 5-Deazaalloxazine
  作者：Rolf W. Grauert

  DOI：10.1002/ardp.19823151111

  日期：——

  Die Umsetzung von Donator‐substituierten 6‐Anilinouracil‐Derivaten 6 mit Vilsmeier Reagens ergibt in Abhängigkeit von der Substitution drei verschiedene Reaktionen: a) Donatoren in m‐Position führen regiospezifisch zu 8‐substituierten 5‐Deazaalloxazinen 8, b) mit Donatoren in p‐Position werden die 5‐Formyl‐Derivate 11 erhalten und c) mit dem starken m‐ständigen Dimethylamino‐Donator erfolgt zusätzliche

  供体 - 取代的 6 - 苯胺尿嘧啶衍生物 6 与 Vilsmeier 试剂的反应导致三种不同的反应，具体取决于取代：a) m 位的供体导致 8- 取代的 5- 脱氮杂恶嗪 8，b) p- 中的供体5-甲酰衍生物 11 在第 1 位获得，c) 与强间位二甲氨基供体，额外的甲酰化和原位环化成 6-二甲氨基-9-甲酰-5-脱氮杂恶嗪 9 与形成8. 使用乙烯基脒7 作为中间体来解释这些反应。
• Novel Deazaflavin Analogues Potently Inhibited Tyrosyl DNA Phosphodiesterase 2 (TDP2) and Strongly Sensitized Cancer Cells toward Treatment with Topoisomerase II (TOP2) Poison Etoposide
  作者：Jayakanth Kankanala、Carlos J. A. Ribeiro、Evgeny Kiselev、Azhar Ravji、Jessica Williams、Jiashu Xie、Hideki Aihara、Yves Pommier、Zhengqiang Wang

  DOI：10.1021/acs.jmedchem.9b00274

  日期：2019.5.9

  Topoisomerase II (TOP2) poisons as anticancer drugs work by trapping TOP2 cleavage complexes (TOP2cc) to generate DNA damage. Repair of such damage by tyrosyl DNA phosphodiesterase 2 (TDP2) could render cancer cells resistant to TOP2 poisons. Inhibiting TDP2, thus, represents an attractive mechanism-based chemosensitization approach. Currently known TDP2 inhibitors lack cellular potency and/or permeability. We report herein two novel subtypes of the deazaflavin TDP2 inhibitor core. By introducing an additional phenyl ring to the N-10 phenyl ring (subtype 11) or to the N-3 site of the deazaflavin scaffold (subtype 12), we have generated novel analogues with considerably improved biochemical potency and/or permeability. Importantly, many analogues of both subtypes, particularly compounds 11a, 11e, 12a, 12b, and 12h, exhibited much stronger cancer cell sensitizing effect than the best previous analogue 4a toward the treatment with etoposide, suggesting that these analogues could serve as effective cellular probes.