2-methyl-4-amino-6-nitroquinazoline | 90323-76-5

• 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: 2-methyl-4-amino-6-nitroquinazoline
• 英文别名: 4-Amino-2-methyl-6-nitrochinazolin；2-methyl-6-nitro-quinazolin-4-ylamine；2-Methyl-4-amino-6-nitroquinazoline；2-methyl-6-nitroquinazolin-4-amine
• CAS: 90323-76-5
• 化学式: C₉H₈N₄O₂
• 分子量: 204.188
• InChiKey: CLRJFSNYHQMMPW-UHFFFAOYSA-N

物化性质

• 熔点：
  331-333 °C(Solvent: Methanol)
• 沸点：
  334.9±24.0 °C(predicted)
• 密度：
  1.454±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  97.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-methyl-4-amino-6-nitroquinazoline 在 palladium on activated charcoal 、 Raney 30 氢气 、 溶剂黄146 、 三氟乙酸 作用下， 以 乙二醇甲醚 为溶剂， 反应 2.5h， 生成 2-desamino-2-methyl-5,8-dideazaisoaminopterin
  参考文献：
  名称：

  Studies on the antitumor effects of analogues of 5,8-dideazaisofolic acid and 5,8-dideazaisoaminopterin

  摘要：

  Six new analogues of 5,8-dideazaisofolic acid and 5,8-dideazaisoaminopterin were synthesized in an effort to obtain enhanced antitumor activity. The modifications included the replacement of the 2-amino group by hydrogen or methyl as well as the inclusion of a methyl substituent at position 9. Based upon activity against L1210 leukemia cells in culture, three of the new analogues together with one compound described previously were evaluated for cytotoxicity in vitro using three human tumor cell lines (Cole 320 DM, Hep G2 and HL-60). The most effective compound was 2-desamino-N-9-methyl-5,8-dideazaisoaminopterin (2c) with the HL-60 cells being the most sensitive to its cytotoxic effects. These analogues were evaluated in vitro as inhibitors of dihydrofolate reductase (DHFR) and thymidylate synthase (TS) from human as well as bacterial (Lactobacillus casei) sources. All four of the 4-amino analogues were most effective toward L. casei DHFR compared with human DHFR, with 2-desamino-2-methyl-5,8-dideazaisoaminopterin (2d) and its 9-methyl derivative (2e) having 818- and 430-fold greater selectivity (L. caseilhuman). Most of the compounds studied were found to be only modest inhibitors of human TS (I-50 values = 1.5 to 20 mu M) and were therefore at least 40-fold less inhibitory than 10-propargyl-5,8-dideazafolic acid. Nevertheless, reversal of cytotoxicity studies with thymidine, hypoxanthine and folinic acid using the HL-60 cell line suggested that TS is the primary target for these analogues.

  DOI：

  10.1016/0006-2952(95)00203-c
• 作为产物：
  描述：

  2-氰基-4-硝基苯胺 在 formamide 作用下， 90.0~200.0 ℃ 、101.33 kPa 条件下， 反应 1.03h， 生成 2-methyl-4-amino-6-nitroquinazoline
  参考文献：
  名称：

  微波辅助的甲酰胺热分解：将嘧啶环与芳族伴侣偶合的工具

  摘要：

  通过微波辅助的甲酰胺的热分解在反应混合物中快速有效地生成CO和NH 3可能代表对现有的将嘧啶环与芳族伴侣偶合的方法的重大改进。这项工作的目的是在这种非常强大的加热模式与热不稳定的试剂相关联时，提醒读者注意观察有趣现象和反应的可能性。

  DOI：

  10.1016/j.tet.2011.05.010

文献信息

• Microwave-assisted thermal decomposition of formamide: a tool for coupling a pyrimidine ring with an aromatic partner
  作者：Yvonnick Loidreau、Thierry Besson

  DOI：10.1016/j.tet.2011.05.010

  日期：2011.7

  reaction mixture via microwave-assisted thermal decomposition of formamide may represent a significant improvement over existing methods for coupling a pyrimidine ring with an aromatic partner. This work aims at alerting readers on the probability to observe interesting phenomena and reactions when this very powerful heating mode is associated with thermally unstable reagents.

  通过微波辅助的甲酰胺的热分解在反应混合物中快速有效地生成CO和NH 3可能代表对现有的将嘧啶环与芳族伴侣偶合的方法的重大改进。这项工作的目的是在这种非常强大的加热模式与热不稳定的试剂相关联时，提醒读者注意观察有趣现象和反应的可能性。
• Studies on the antitumor effects of analogues of 5,8-dideazaisofolic acid and 5,8-dideazaisoaminopterin
  作者：Robert L. Hagan、John B. Hynes、Meade Pimsler、Roy L. Kisliuk

  DOI：10.1016/0006-2952(95)00203-c

  日期：1995.9

  Six new analogues of 5,8-dideazaisofolic acid and 5,8-dideazaisoaminopterin were synthesized in an effort to obtain enhanced antitumor activity. The modifications included the replacement of the 2-amino group by hydrogen or methyl as well as the inclusion of a methyl substituent at position 9. Based upon activity against L1210 leukemia cells in culture, three of the new analogues together with one compound described previously were evaluated for cytotoxicity in vitro using three human tumor cell lines (Cole 320 DM, Hep G2 and HL-60). The most effective compound was 2-desamino-N-9-methyl-5,8-dideazaisoaminopterin (2c) with the HL-60 cells being the most sensitive to its cytotoxic effects. These analogues were evaluated in vitro as inhibitors of dihydrofolate reductase (DHFR) and thymidylate synthase (TS) from human as well as bacterial (Lactobacillus casei) sources. All four of the 4-amino analogues were most effective toward L. casei DHFR compared with human DHFR, with 2-desamino-2-methyl-5,8-dideazaisoaminopterin (2d) and its 9-methyl derivative (2e) having 818- and 430-fold greater selectivity (L. caseilhuman). Most of the compounds studied were found to be only modest inhibitors of human TS (I-50 values = 1.5 to 20 mu M) and were therefore at least 40-fold less inhibitory than 10-propargyl-5,8-dideazafolic acid. Nevertheless, reversal of cytotoxicity studies with thymidine, hypoxanthine and folinic acid using the HL-60 cell line suggested that TS is the primary target for these analogues.