4-(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)piperidine-1-carboxylic acid tert-butyl ester | 1363876-41-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: 4-(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)piperidine-1-carboxylic acid tert-butyl ester
• CAS: 1363876-41-8
• 化学式: C₁₆H₂₁N₃O₃S
• 分子量: 335.427
• InChiKey: MPHYPJPJHJWANB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.91
• 重原子数：
  23.0
• 可旋转键数：
  2.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  68.46
• 氢给体数：
  0.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  4-(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)piperidine-1-carboxylic acid tert-butyl ester 在 盐酸 作用下， 以 1,4-二氧六环 为溶剂， 以92%的产率得到4-(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)piperidine hydrochloride
  参考文献：
  名称：

  Ethionamide Boosters. 2. Combining Bioisosteric Replacement and Structure-Based Drug Design To Solve Pharmacokinetic Issues in a Series of Potent 1,2,4-Oxadiazole EthR Inhibitors

  摘要：

  Mycobacterial transcriptional repressor EthR controls the expression of EthA, the bacterial monooxygenase activating ethionamide, and is thus largely responsible for the low sensitivity of the human pathogen Mycobacterium tuberculosis to this antibiotic. We recently reported structure-activity relationships of a series of 1,2,4-oxadiazole EthR inhibitors leading to the discovery of potent ethionamide boosters. Despite high metabolic stability, pharmacokinetic evaluation revealed poor mice exposure; therefore, a second phase of optimization was required. Herein a structure-property relationship study is reported according to the replacement of the two aromatic heterocycles: 2-thienyl and 1,2,4-oxadiazolyl moieties. This work was done using a combination of structure-based drug design and in vitro/ex vivo evaluations of ethionamide boosters on the targeted protein EthR and on the human pathogen Mycobacterium tuberculosis. Thanks to this process, we identified compound 42 (BDM41906), which displays improved efficacy in addition to high exposure to mice after oral administration.

  DOI：

  10.1021/jm200825u
• 作为产物：
  描述：

  叔丁基(Z)-4-(N'-羟基氨基甲脒酰基)哌啶-1-羧酸酯 在 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、 N,N-二异丙基乙胺 作用下， 以 1,4-二氧六环 、 N,N-二甲基甲酰胺 为溶剂， 反应 5.08h， 生成 4-(5-thiophen-2-yl-1,2,4-oxadiazol-3-yl)piperidine-1-carboxylic acid tert-butyl ester
  参考文献：
  名称：

  Ethionamide Boosters. 2. Combining Bioisosteric Replacement and Structure-Based Drug Design To Solve Pharmacokinetic Issues in a Series of Potent 1,2,4-Oxadiazole EthR Inhibitors

  摘要：

  Mycobacterial transcriptional repressor EthR controls the expression of EthA, the bacterial monooxygenase activating ethionamide, and is thus largely responsible for the low sensitivity of the human pathogen Mycobacterium tuberculosis to this antibiotic. We recently reported structure-activity relationships of a series of 1,2,4-oxadiazole EthR inhibitors leading to the discovery of potent ethionamide boosters. Despite high metabolic stability, pharmacokinetic evaluation revealed poor mice exposure; therefore, a second phase of optimization was required. Herein a structure-property relationship study is reported according to the replacement of the two aromatic heterocycles: 2-thienyl and 1,2,4-oxadiazolyl moieties. This work was done using a combination of structure-based drug design and in vitro/ex vivo evaluations of ethionamide boosters on the targeted protein EthR and on the human pathogen Mycobacterium tuberculosis. Thanks to this process, we identified compound 42 (BDM41906), which displays improved efficacy in addition to high exposure to mice after oral administration.

  DOI：

  10.1021/jm200825u