6,7-dimethoxy-3-phenyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one | 31485-66-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 6,7-dimethoxy-3-phenyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one
• 英文别名: 6,7-dimethoxy-3-phenyl-2-sulfanylidene-1H-quinazolin-4-one
• CAS: 31485-66-2
• 化学式: C₁₆H₁₄N₂O₃S
• 分子量: 314.365
• InChiKey: DKEYZNUDLQFDAL-UHFFFAOYSA-N

物化性质

• 熔点：
  317～319℃
• 沸点：
  476.2±55.0 °C(Predicted)
• 密度：
  1.40±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  82.9
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 海关编码：
  2933990090

反应信息

• 作为反应物：
  描述：

  6,7-dimethoxy-3-phenyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one 在 磺酰氯 、 三乙胺 作用下， 以 氯仿 、 乙腈 为溶剂， 反应 4.0h， 生成 2-((1,3-dimethylimidazolidin-2-ylidene)amino)-4,5-dimethoxy-N-phenylbenzamide
  参考文献：
  名称：

  发散的 2-氯喹唑啉-4(3H)-酮重排：通过多米诺过程形成扭曲环状胍或环稠合 N-酰基胍

  摘要：

  开发了一种高效的 2-氯喹唑啉-4(3 H )-酮重排，可预测地在一次操作中产生扭曲的环状或稠合的胍，这取决于伴随的二胺试剂中伯胺与仲胺的存在。2-氯喹唑啉酮与仲二胺的配对导致扭曲环状胍的独特形成。使用含伯胺的二胺允许多米诺喹唑啉酮重排/分子内环化，通过 ( E )-扭曲的环状胍进行门控，得到环稠合的N‐酰基胍。这种可扩展的、结构耐受的转化产生了 55 种胍，并提供了具有强大血浆稳定性的扭曲环状胍和一种抗肿瘤环稠合胍的简化全合成（4 步，55% 收率）。

  DOI：

  10.1002/chem.201905219
• 作为产物：
  描述：

  2-氨基-4,5-二甲氧基苯甲酸甲酯 、 硫代异氰酸苯酯 在 三乙胺 作用下， 以 乙腈 为溶剂， 反应 0.5h， 以63%的产率得到6,7-dimethoxy-3-phenyl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one
  参考文献：
  名称：

  Neuroprotective efficacy of quinazoline type phosphodiesterase 7 inhibitors in cellular cultures and experimental stroke model

  摘要：

  A simple and efficient synthetic method for the preparation of quinazoline type phosphodiesterase 7 (PDE7) inhibitors, based on microwave irradiation, has been developed. The use of this methodology improved yields and reaction times, providing a scalable procedure. These compounds are pharmacologically interesting because of their in vivo efficacy both in spinal cord injury and Parkinson's disease models, as shown in previous studies from our group. Herein we describe for the first time that administration of one of the PDE7 inhibitors here optimized, 3-pheny1-2,4-dithioxo-1,2,3,4-tetrahydroquinazoline (compound 5), ameliorated brain damage and improved behavioral outcome in a permanent middle cerebral artery occlusion (pMCAO) stroke model. Furthermore, we demonstrate that these PDE7 inhibitors are potent anti-inflammatory as well as neuroprotective agents in primary cultures of neural cells. These results led us to propose PDE7 inhibitors as a new class of therapeutic agents for neuroprotection. (C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.10.040

文献信息

• Synthesis, anticonvulsant activity and molecular modeling study of some new hydrazinecarbothioamide, benzenesulfonohydrazide, and phenacylacetohydrazide analogues of 4(3H)-quinazolinone
  作者：Huda S.A. Al-Salem、Gehan H. Hegazy、Kamal E.H. El-Taher、Shahenda M. El-Messery、Abdulrahman M. Al-Obaid、Hussein I. El-Subbagh

  DOI：10.1016/j.bmcl.2015.02.025

  日期：2015.4

  A new series of quinazoline analogues was designed and synthesized to get the target compounds 18–21, 30–41, 46–53, and 57–76. The Obtained compounds were evaluated for their anticonvulsant activity using PTZ and picrotoxin convulsive models. Compounds 47, 63, 68 and 73 proved to be the most active compounds in this study with a remarkable 100% protection against PTZ induced convulsions. Compounds

  一系列新的喹唑啉类似物的设计和合成，以获得目标化合物18 - 21，30 - 41，46 - 53，和57 - 76。使用PTZ和微毒素惊厥模型评估获得的化合物的抗惊厥活性。化合物47，63，68和73被证明是在本研究中最活跃的化合物与对PTZ诱发的惊厥的显着100％的保护。化合物47，63，68和73经证实，它们的活性分别是所用的阳性对照丙戊酸钠的10倍，4倍，4倍和5倍。结构活性相关性得出了有价值的药效学信息，这些信息已通过分子建模研究得到证实。68的分子对接研究表明其对GABA A受体的激动作用。研究的喹唑啉类似物可以被认为是未来开发和进一步衍生化的有用模板。
• Nonclassical antifolates, part 3: Synthesis, biological evaluation and molecular modeling study of some new 2-heteroarylthio-quinazolin-4-ones
  作者：Fatmah A.M. Al-Omary、Ghada S. Hassan、Shahenda M. El-Messery、Mahmoud N. Nagi、El-Sayed E. Habib、Hussein I. El-Subbagh

  DOI：10.1016/j.ejmech.2012.12.061

  日期：2013.5

  antitumor activity toward several tumor cell lines with GI values range of 25.8–41.2%. Molecular modeling studies concluded that recognition with key amino acid Arg38 and Lys31 are essential for binding and biological activities. Flexible alignment; electrostatic and hydrophobic mappings revealed that the obtained model could be useful for the development of new DHFR inhibitors.

  设计，合成并评估了一系列新的2-杂芳硫基-6-取代的喹唑啉-4-one类似物的体外DHFR抑制，抗菌和抗肿瘤活性。化合物21，25，和39被证明是活性DHFR抑制剂与IC 50范围0.3-0.8微米。化合物25，28，33，35和36显示出广谱的抗微生物活性相媲美的已知抗生素庆大霉素。化合物29对GI值范围为25.8–41.2％的几种肿瘤细胞系显示出广谱抗肿瘤活性。分子模型研究得出的结论是，关键氨基酸Arg38和Lys31的识别对于结合和生物活性至关重要。灵活的对齐方式；静电和疏水图谱表明，所获得的模型可用于开发新的DHFR抑制剂。
• Synthesis, biological evaluation and molecular modeling study of some new methoxylated 2-benzylthio-quinazoline-4( 3H )-ones as nonclassical antifolates
  作者：Shahenda M. El-Messery、Ghada S. Hassan、Mahmoud N. Nagi、El-Sayed E. Habib、Sarah T. Al-Rashood、Hussein I. El-Subbagh

  DOI：10.1016/j.bmcl.2016.08.022

  日期：2016.10

  evaluated for their in vitro DHFR inhibition, antimicrobial, and antitumor activities. Compounds 28 and 61 proved to be active DHFR inhibitors with IC50 0.02 and 0.01μM, respectively. Molecular modeling studies concluded that recognition with the key amino acid Phe34 is essential for binding and hence DHFR inhibition. Compounds 34, 56 and 66 showed broad spectrum antimicrobial activity comparable to Gentamicin

  设计，合成并评估了一系列新的2,3,6-取代的喹唑啉-4-酮系列化合物，它们的体外DHFR抑制，抗菌和抗肿瘤活性均得到了评估。化合物28和61被证明是活性DHFR抑制剂，IC50分别为0.02和0.01μM。分子模型研究得出结论，关键氨基酸Phe34的识别对于结合并因此抑制DHFR是必不可少的。化合物34、56和66显示出与庆大霉素和环丙沙星相当的广谱抗菌活性。化合物40和64对几种肿瘤细胞系表现出广谱抗肿瘤活性，并被证明比5-FU活性高10倍，GI50 MG-MID值分别为2.2和2.4μM。
• Synthesis, biological evaluation and molecular modeling study of 2-(1,3,4-thiadiazolyl-thio and 4-methyl-thiazolyl-thio)-quinazolin-4-ones as a new class of DHFR inhibitors
  作者：Sarah T. Al-Rashood、Ghada S. Hassan、Shahenda M. El-Messery、Mahmoud N. Nagi、El-Sayed E. Habib、Fatmah A.M. Al-Omary、Hussein I. El-Subbagh

  DOI：10.1016/j.bmcl.2014.07.070

  日期：2014.9

  comparable to the known antibiotic Gentamicin. Compounds 26, 33, 39, 43, 44, 50, 55 and 63 showed broad spectrum antitumor activity with GI values range of 10.1–100%. Molecular modeling study concluded that recognition with key amino acid Glu30, Phe31 and Phe34 is essential for binding. ADMET properties prediction of the active compounds suggested that compounds 29 and 34 could be orally absorbed with

  设计，合成并合成了一系列新的2-（1,3,4-噻二唑基或4-甲基噻唑基）硫代6-取代的喹唑啉-4-酮类似物，并对其体外DHFR抑制，抗菌，和抗肿瘤活性。化合物29，34，和39被证明是最活跃的DHFR抑制剂与IC 50值的范围为0.1〜0.6μm。化合物28，31和33表现出显着的广谱抗微生物活性相媲美的已知抗生素庆大霉素。化合物26，33，39，43，44，50，5563和63显示了广谱抗肿瘤活性，GI值范围为10.1–100％。分子模型研究得出结论，关键氨基酸Glu30，Phe31和Phe34的识别对于结合至关重要。活性化合物的ADMET性质预测表明，化合物29和34可以口服吸收，且毒性降低。
• Multicomponent Synthesis of 1,2,3-Triazol-4-yl-methylthio-3-arylquinazolin-4(3<i>H</i>)-one Derivatives
  作者：Majid Koohshari、Minoo Dabiri、Peyman Salehi、Mahboobeh Bahramnejad

  DOI：10.1080/00397911.2011.558968

  日期：2012.8.15

  A novel, one-pot, three-component reaction for the synthesis of novel 1,2,3-triazol-4-yl-methylthio-3-arylquinazolin-4(3H)-one derivatives using the Huisgen 1,3-dipolar cycloaddition reaction of organic azides and in situ-prepared terminal alkynes in good to excellent yields is reported.