5-n-butoxy-2,4-diaminoquinazoline | 123241-93-0

• 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: 5-n-butoxy-2,4-diaminoquinazoline
• 英文别名: 2,4-Diaminoquinazoline,5-butoxy；5-butoxyquinazoline-2,4-diamine
• CAS: 123241-93-0
• 化学式: C₁₂H₁₆N₄O
• 分子量: 232.285
• InChiKey: VWPKLMFNWIEJCL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  87
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2,6-二硝基氯苯 在 盐酸 、 溶剂黄146 、 tin(ll) chloride 作用下， 以 二乙二醇二甲醚 、 N,N-二甲基甲酰胺 、 正丁醇 为溶剂， 反应 11.5h， 生成 5-n-butoxy-2,4-diaminoquinazoline
  参考文献：
  名称：

  5-取代的2,4-二氨基喹唑啉的抗叶酸和抗菌活性。

  摘要：

  合成了一系列5-取代的2,4-二氨基喹唑啉（3），并从细菌和哺乳动物来源评估了它们作为二氢叶酸还原酶（DHFR）的抑制剂。最好的化合物（例如53种）对大肠杆菌DHFR表现出良好的活性，但对细菌的选择性没有比哺乳动物酶高的选择性。抑制酶的构效关系似乎很复杂，不宜进行简单分析。提出了一个假设来解释观察到的定性结构-活性关系。该化合物对体外完整细菌细胞生长的抑制活性与抑制分离的细菌酶的抑制活性非常相似，这表明它们的抗叶酸作用是其抗菌作用的原因。

  DOI：

  10.1021/jm00163a067

文献信息

• USE OF A QUINAZOLINE COMPOUND IN PREPARING A MEDICAMENT AGAINST FLAVIVIRIDAE VIRUS
  申请人：Zuo Jianping

  公开号：US20130261139A1

  公开（公告）日：2013-10-03

  Disclosed is a use of a quinazoline compound of Formula I having 2,4-diaminoquinazoline as a parent nucleus in preparation of a medicament for treating diseases caused by flaviviridae infection, especially a use in combating Hepatitis C virus infection and Dengue fever virus infection.

  本发明揭示了一种使用式I的喹唑啉化合物，其中2,4-二氨基喹唑啉作为母核，用于制备治疗由黄病毒科感染引起的疾病的药物，特别是用于对抗丙型肝炎病毒感染和登革热病毒感染的用途。
• USE OF QUINAZOLINE COMPOUND IN PREPARATION OF ANTI-FLAVIVIRUS DRUG
  申请人：Shanghai Institute Materia Medica, Chinese Academy Of Sciences

  公开号：EP2649999A1

  公开（公告）日：2013-10-16

  Disclosed is a use of a quinazoline compound of Formula I having 2,4-diaminoquinazoline as a parent nucleus in preparation of a medicament for treating diseases caused by flaviviridae infection, especially a use in combating Hepatitis C virus infection and Dengue fever virus infection.

  本发明公开了以 2,4-二氨基喹唑啉为母核的式 I 喹唑啉化合物在制备治疗由黄病毒感染引起的疾病的药物中的用途，特别是在防治丙型肝炎病毒感染和登革热病毒感染中的用途。
• Synthesis and Biological Evaluation of Novel 2,4-Diaminoquinazoline Derivatives as <i>SMN2</i> Promoter Activators for the Potential Treatment of Spinal Muscular Atrophy
  作者：John Thurmond、Matthew E. R. Butchbach、Marty Palomo、Brian Pease、Munagala Rao、Louis Bedell、Monica Keyvan、Grace Pai、Rama Mishra、Magnus Haraldsson、Thorkell Andresson、Gisli Bragason、Margret Thosteinsdottir、Jon Mar Bjornsson、Daniel D. Coovert、Arthur H. M. Burghes、Mark E. Gurney、Jasbir Singh

  DOI：10.1021/jm061475p

  日期：2008.2.1

  Proximal spinal muscular atrophy (SMA) is an autosomal recessive disorder characterized by death of motor neurons in the spinal cord that is caused by deletion and/or mutation of the survival motor neuron gene (SMN1). Adjacent to SMN1 are a variable number of copies of the SMN2 gene. The two genes essentially differ by a single nucleotide, which causes the majority of the RNA transcripts from SMN2 to lack exon 7. Although both SMN1 and SMN2 encode the same Smn protein amino acid sequence, the loss of SMN1 and incorrect splicing of SMN2 have the consequence that Smn protein levels are insufficient for the survival of motor neurons. The therapeutic goal of our medicinal chemistry effort was to identify small-molecule activators of the SMN2 promoter that, by up-regulating gene transcription, would produce greater quantities of full-length Smn protein. Our initial medicinal chemistry effort explored a series of C5 substituted benzyl ether based 2,4-diaminoquinazoline derivatives that were found to be potent activators of the SMN2 promoter; however, inhibition of DHFR was shown to be an off-target activity that was linked to ATP depletion. We used a structure-guided approach to overcome DHFR inhibition while retaining SMN2 promoter activation. A lead compound 11a was identified as having high potency (EC50 = 4 nM) and 2.3-fold induction of the SMN2 promoter. Compound Ila possessed desirable pharmaceutical properties, including excellent brain exposure and long brain half-life following oral dosing to mice. The piperidine compound Ila up-regulated expression of the mouse SMN gene in NSC-34 cells, a mouse motor neuron hybrid cell line. In type I SMA patient fibroblasts, compound Ila induced Smn in a dose-dependent manner when analyzed by immuno-blotting and increased the number of intranuclear particles called gems. The compound restored gems numbers in type I SMA patient fibroblasts to levels near unaffected genetic carriers of SMA.
• Discovery and Optimization of 2,4-Diaminoquinazoline Derivatives as a New Class of Potent Dengue Virus Inhibitors
  作者：Bo Chao、Xian-Kun Tong、Wei Tang、De-Wen Li、Pei-Lan He、Jean-Michel Garcia、Li-Min Zeng、An-Hui Gao、Li Yang、Jia Li、Fa-Jun Nan、Michael Jacobs、Ralf Altmeyer、Jian-Ping Zuo、You-Hong Hu

  DOI：10.1021/jm2015952

  日期：2012.4.12

  The results of a high-throughput screening assay using the DENV-2 replicon showed that the 2,4-diaminoquinazoline derivative 4a has a high dengue virus inhibitory activity (EC50 = 0.15 mu M). A series of 2,4-diaminoquinazoline derivatives based on 4a as a lead compound were synthesized and subjected to structure-antidengue activity relationship studies. Among the series of 2,4-diaminoquinazoline derivative probed, 4o was observed to display both the highest antiviral potency (EC50 = 2.8 nM, SI > 1000) and an excellent pharmacokinetic profile.
• US9133138B2
  申请人：——

  公开号：US9133138B2

  公开（公告）日：2015-09-15