(E)-tert-butyl 2-(thiophen-2-ylmethylene)hydrazinecarboxylate | 180462-80-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: (E)-tert-butyl 2-(thiophen-2-ylmethylene)hydrazinecarboxylate
• 英文别名: tert-butyl (2E)-2-(thiophen-2-ylmethylidene)hydrazinecarboxylate；tert-butyl N-[(E)-thiophen-2-ylmethylideneamino]carbamate
• CAS: 180462-80-0
• 化学式: C₁₀H₁₄N₂O₂S
• 分子量: 226.299
• InChiKey: NRWWYAMDBJLDCQ-YRNVUSSQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  78.9
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (E)-tert-butyl 2-(thiophen-2-ylmethylene)hydrazinecarboxylate 在 sodium cyanoborohydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 为溶剂， 反应 72.0h， 以40%的产率得到N-1-(tert-butoxycarbonyl)-N-2-(2-thienylmethyl)hydrazine
  参考文献：
  名称：

  Aza-Peptide Analogs as Potent Human Immunodeficiency Virus Type-1 Protease Inhibitors with Oral Bioavailability

  摘要：

  A series of aza-peptide analogs with a (hydroxyethyl)hydrazine isostere has been synthesized as HIV-1 protease inhibitors using a simple synthetic scheme. Structure-activity studies based on the X-ray of a previously described inhibitor-enzyme complex led to potent inhibitors with antiviral activity in the low-nanomolar range. The S-configuration of the transition-state hydroxyl group was preferred in this series. Small modifications of the P2P3 and P-2'P-3' substituents had little effect on enzyme inhibition but greatly influenced the pharmacokinetic profile. As a result of these studies, the symmetrically acylated compound 8a and its close analog 24a bearing a methyl carbamate in P-3 and an ethyl carbamate in P-3' position were identified as potent inhibitors with plasma concentrations exceeding antiviral ED(50) values 150-fold following oral application in mice.

  DOI：

  10.1021/jm960022p
• 作为产物：
  描述：

  2-噻吩甲醛 、 肼基甲酸叔丁酯 反应 1.5h， 以100%的产率得到(E)-tert-butyl 2-(thiophen-2-ylmethylene)hydrazinecarboxylate
  参考文献：
  名称：

  Solvent-free synthesis of hydrazones and their subsequent N-alkylation in a Ball-mill

  摘要：

  A large variety of Boc-, Bz-, Ts-, and Fmoc- protected hydrazones were prepared via condensation of an equimolar amount of carbonyl-compound and the corresponding hydrazine using a ball-mill. Hydrazones were always obtained in a quantitative yield and no solvents were used at any step. In a second step, we realized the first solvent-free N-allylation and N-benzylation of these hydrazones. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.07.056