3-pyridazinealdoxime | 52348-44-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 3-pyridazinealdoxime
• 英文别名: pyridazine-3-carbaldehyde oxime；Pyridazine aldoxime；N-(pyridazin-3-ylmethylidene)hydroxylamine
• CAS: 52348-44-4
• 化学式: C₅H₅N₃O
• 分子量: 123.114
• InChiKey: WIMYFNDMUOCIMO-UHFFFAOYSA-N

物化性质

• 沸点：
  320.4±15.0 °C(Predicted)
• 密度：
  1.28±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  58.4
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-pyridazinealdoxime 在 palladium 10% on activated carbon 、 氢气 作用下， 以 乙醇 为溶剂， 反应 1.0h， 以100%的产率得到3-哒嗪甲胺
  参考文献：
  名称：

  Synthesis and structure–activity relationships of amide derivatives of (4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepin-5-ylidene)acetic acid as selective arginine vasopressin V2 receptor agonists

  摘要：

  A series of (4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepin-5-ylidene)acetamide derivatives was synthesized, and their structure-activity relationships were examined in order to identify potent and selective arginine vasopressin V-2 receptor agonists. Attempts to substitute other chemical groups in place of the 2-pyridilmethyl moiety of 1a led to the discovery that potent V-2 binding affinity could be obtained with a wide range of functional groups. This structural tolerance allowed for the manipulation of other attributes, such as selectivity against V-1a receptor affinity or avoidance of the undesirable inhibition of cytochrome P450 (CYP), without losing potent affinity for the V-2 receptor. Some representative compounds obtained in this study were also found to decrease urine volume in awake rats. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2009.03.001
• 作为产物：
  描述：

  哒嗪-3-甲醛 在 盐酸羟胺 、 potassium carbonate 作用下， 以 乙醇 、 水 为溶剂， 以89%的产率得到3-pyridazinealdoxime
  参考文献：
  名称：

  Quaternary Heteroarenium Aldoximes as Catalysts for Cleavage of Phosphate Esters

  摘要：

  1-甲基-（Ia - Id）和1-十二烷基-2-、3-和4-羟基亚甲基吡啶盐（Ie - Ih），以及1-甲基-（IIa）和1-十二烷基-3-羟基亚甲基吡啶盐（IIb，IIc），被合成为有机磷酸酯水解裂解的催化剂。通过测量在伪一级反应条件下对4-硝基苯二苯酚磷酸二丙酯（PNPDPP）水解的速率常数来评估所制备催化剂的活性。在中性或稍微碱性水溶液（pH 7.2和7.8）中，吡啶醛肟Ia - Ih对PNPDPP的观察到的反应性取决于羟亚甲基基团的酸度。在其临界胶束浓度（CMC）以上的1-十二烷基羟基亚甲基吡啶盐Ie - Ih的溶液中，PNPDPP的裂解受到强烈加速。当四级吡啶醛肟Ie - Ih与惰性阳离子表面活性剂溴化十六烷基三甲基铵（CTAB）共混时，对PNPDPP裂解速度产生显著影响。1-十二烷基-3-羟基亚甲基吡啶盐IIb和IIc在上述条件下的水溶液中是不稳定的。

  DOI：

  10.1135/cccc19950883

文献信息

• Synthesis and antibacterial activity of 6-O-(heteroaryl-isoxazolyl)propynyl 2-fluoro ketolides
  作者：Tomohiro Sugimoto、Yoichi Shimazaki、Akira Manaka、Tetsuya Tanikawa、Keiko Suzuki、Kayoko Nanaumi、Yoshie Kaneda、Yukiko Yamasaki、Hiroyuki Sugiyama

  DOI：10.1016/j.bmcl.2012.06.092

  日期：2012.9

  Macrolide antibiotics are widely prescribed for the treatment of respiratory tract infections; however, the increasing prevalence of macrolide-resistant pathogens is a public health concern. Therefore, the development of new macrolide derivatives with activities against resistant pathogens is urgently needed. A series of novel 6-O-(heteroaryl-isoxazolyl)propynyl 2-fluoro ketolides has been synthesized from erythromycin A. These compounds have shown very promising in vitro and in vivo antibacterial activities against key respiratory pathogens including erythromycin-susceptible/resistant strains. (C) 2012 Elsevier Ltd. All rights reserved.