5-hydroxy-8-methyl-1,3-diphenyl-pyrido<2,3-d>pyrimidine-2,4,7-trione | 177082-44-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶并嘧啶类
• 英文名称: 5-hydroxy-8-methyl-1,3-diphenyl-pyrido<2,3-d>pyrimidine-2,4,7-trione
• 英文别名: 5-hydroxy-8-methyl-1,3-diphenylpyrido[2,3-d]pyrimidine-2,4,7-trione
• CAS: 177082-44-9
• 化学式: C₂₀H₁₅N₃O₄
• 分子量: 361.357
• InChiKey: BDRCKAGCCDRJDZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  27
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  81.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-hydroxy-8-methyl-1,3-diphenyl-pyrido<2,3-d>pyrimidine-2,4,7-trione 在 三乙胺 作用下， 以 异丙醇 、 乙腈 为溶剂， 反应 12.0h， 生成 5-(4-chlorophenylamino)-8-methyl-1,3-diphenylpyrido[2,3-d]pyrimidine-2,4,7-(1H,3H,8H)-trione
  参考文献：
  名称：

  Ring closure reaction of 5-hydroxy-pyrido[2,3-d]pyrimidine-2,4,7-triones to benzo[b]pyrimido[4,5-h]1,6-naphthyridine-1,3,6-triones

  摘要：

  N-Substituted aminouracils (1) react with malonates by cyclocondensation to 5-hydroxy-pyrido [2,3-d] pyrimidine-2,4,7-triones (2), which give with triethylorthoformate and aniline 6-(phenylaminomethylene)-pyrido[2,3-d]pyrimidine-tetraone (3). Halogenation of 2a-d (with R(2) = Me) with phosphorylchloride leads to 5,7-dichloro-pyrido [2,3-d]pyrimidine-2,4-diones (4) by cleavage of the methyl group at N-8, whereas Vilsmeier reaction of 2 affords 5-chloro-6-formyl derivatives (6), which cyclize with arylamines to give benzo[b]pyrimido[4,5-h] 1,6-naphthyridines (9). Compounds 9 were obtained independently by amination of the tosylates 5 to the 5-arylamino compounds 8, and Vilsmeier formylation to yield 9.

  DOI：

  10.1002/prac.19963380129
• 作为产物：
  描述：

  6-methylamino-1,3-diphenyl-1H-pyrimidine-2,4-dione 、 丙二酸二乙酯 以 二苯醚 为溶剂， 反应 2.0h， 以94%的产率得到5-hydroxy-8-methyl-1,3-diphenyl-pyrido<2,3-d>pyrimidine-2,4,7-trione
  参考文献：
  名称：

  Ring closure reaction of 5-hydroxy-pyrido[2,3-d]pyrimidine-2,4,7-triones to benzo[b]pyrimido[4,5-h]1,6-naphthyridine-1,3,6-triones

  摘要：

  N-Substituted aminouracils (1) react with malonates by cyclocondensation to 5-hydroxy-pyrido [2,3-d] pyrimidine-2,4,7-triones (2), which give with triethylorthoformate and aniline 6-(phenylaminomethylene)-pyrido[2,3-d]pyrimidine-tetraone (3). Halogenation of 2a-d (with R(2) = Me) with phosphorylchloride leads to 5,7-dichloro-pyrido [2,3-d]pyrimidine-2,4-diones (4) by cleavage of the methyl group at N-8, whereas Vilsmeier reaction of 2 affords 5-chloro-6-formyl derivatives (6), which cyclize with arylamines to give benzo[b]pyrimido[4,5-h] 1,6-naphthyridines (9). Compounds 9 were obtained independently by amination of the tosylates 5 to the 5-arylamino compounds 8, and Vilsmeier formylation to yield 9.

  DOI：

  10.1002/prac.19963380129

文献信息

• Synthesis of 5-mono- and 5,7-diamino-pyrido[2,3-<i>d</i>]-pyrimidinediones with potential biological activity by regioselective amination
  作者：Dang Van Tinh、Wolfgang Stadlbauer

  DOI：10.1002/jhet.5570450329

  日期：2008.5

  triphenyl-phosphane via Staudinger reaction. Hydrolysis with aqueous acetic acid produced in one step 7-unsubstituted-amino-pyrido[2,3-d]pyrimidine-2,4-diones 12. In a similar amination reaction, 5-chloropyrido[2,3-d]pyrimidine-2,4,7-triones 13 were aminated and formylated to 5-alkyl/arylamino-6-formyl derivatives 14-16 in a combined one-step-reaction with bulky arylamines or alkylamines in the presence of dimethylformamide

  由相应的5,7-二氯制备5-烷基-/芳基氨基-和5,7-二烷基/芳基氨基-吡啶并[2,3- d ]嘧啶-2,4-二酮（4,5,7-9）。在区域选择性反应中与脂肪族和芳香族胺3和6一起合成-pyrido [2,3- d ] pyrimidine-2,4-diones 2。通过5-氨基-7-氯衍生物4的叠氮化而获得的7-单叠氮化物10通过Staudinger反应与三苯基膦反应而转化为亚氨基正膦。用一步法制得的乙酸水溶液水解7-未取代的氨基-吡啶并[2,3 - d ]嘧啶-2,4-二酮12。以类似的胺化反应中，5-氯吡啶并[2,3- d ]嘧啶-2,4,7-三酮13进行胺化和甲酰化，5-烷基/芳基氨基-6-甲酰基衍生物14 - 16在组合的单步-在二甲基甲酰胺的存在下与庞大的芳胺或烷基胺的反应。
• Ring closure reactions of pyrido[2,3-<i>d</i>]pyrimidines to pyrano[2′,3′:4,5]- and oxazolo[5′,4′:4,5]pyrido[2,3-<i>d</i>]pyrimidines
  作者：Dang Van Tinh、Wolfgang Stadlbauer

  DOI：10.1002/jhet.5570450517

  日期：2008.9

  zinc in the presence of carboxylic acids/anhydrides gave 2-alkyloxazolo[5′,4′:4,5]pyrido[2,3-d]pyrimidines 4, which were ring-opened to 6-aminopyrido[2,3-d]pyrimidines 5, 6 and 7. Cyclization of 6-aminopyrido[2,3-d]pyrimidines 6 with benzoylchlorides 8 gave 2-aryloxazolo[5′,4′:4,5]pyrido[2,3-d]pyrimidines 9. Reaction conditions for the cyclization have been studied by differential scanning calorimetry

  5-羟基-吡啶并[2,3- d ]嘧啶1与丙二酸酯的环缩合反应得到吡喃并[2'，3'：4,5]-吡啶并[2,3- d ]嘧啶2。硝化1并在羧酸/酸酐存在下用锌还原得到2-烷基恶唑并[5'，4'：4,5]吡啶[2,3- d ]嘧啶4，将其开环成6-氨基吡啶[2，3- d ]嘧啶5、6和7。6-氨基吡啶并[2,3- d ]嘧啶6与苯甲酰氯8的环化反应生成2-芳基恶唑并[5'，4'：4,5]吡啶并[2,3- d ]嘧啶9。通过差示扫描量热法（DSC）已经研究了用于环化的反应条件。