3-methyl-1,2,4-oxadiazole-5-carbohydrazide | 40019-29-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3-methyl-1,2,4-oxadiazole-5-carbohydrazide
• CAS: 40019-29-2
• 化学式: C₄H₆N₄O₂
• mdl: MFCD18064579
• 分子量: 142.117
• InChiKey: QBHWZTHKHVEAIB-UHFFFAOYSA-N

物化性质

• 密度：
  1.386±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.6
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  94
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• 危险等级：
  IRRITANT

反应信息

• 作为反应物：
  描述：

  (R)-1-(2,4-dimethoxybenzyl)-5-ethoxy-6-methyl-1,2,3,6-tetrahydropyrazine 、 3-methyl-1,2,4-oxadiazole-5-carbohydrazide 以 甲醇 为溶剂， 反应 8.0h， 以87%的产率得到(R)-5-(7-(2,4-dimethoxybenzyl)-8-methyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)-3-methyl-1,2,4-oxadiazole
  参考文献：
  名称：

  Discovery and Optimization of Novel Antagonists to the Human Neurokinin-3 Receptor for the Treatment of Sex-Hormone Disorders (Part I)

  摘要：

  Neurokinin-3 receptor (NK3R) has recently emerged as important in modulating the tonic pulsatile gonadotropin-releasing hormone (GnRH) release. We therefore decided to explore NK3R antagonists as therapeutics for sex-hormone disorders that can potentially benefit from lowering GnRH pulsatility with consequent diminished levels of plasma luteinizing hormone (LH) and correspondingly attenuated levels of circulating androgens and estrogens. The discovery and lead optimization of a novel N-acyl-triazolopiperazine NK3R antagonist chemotype achieved through bioisosteric lead change from the high-throughput screening (HTS) hit is described. A concomitant improvement in the antagonist bioactivity and ligand lipophilic efficiency (LLE) parameter were the principal guidelines in the lead optimization efforts. Examples of advanced lead analogues to demonstrate the amenability of this chemotype to achieving a suitable pharmacokinetic (PK) profile are provided as well as pharmacokinetic-pharmacodynamic (PKPD) correlations to analyze the trends observed for LH inhibition in castrated rats and monkeys that served as preliminary in vivo efficacy models.

  DOI：

  10.1021/jm5017413
• 作为产物：
  描述：

  乙基3-甲基-1,2,4-恶二唑 在 一水合肼 作用下， 以 乙醇 为溶剂， 反应 14.0h， 以81%的产率得到3-methyl-1,2,4-oxadiazole-5-carbohydrazide
  参考文献：
  名称：

  Discovery and Optimization of Novel Antagonists to the Human Neurokinin-3 Receptor for the Treatment of Sex-Hormone Disorders (Part I)

  摘要：

  Neurokinin-3 receptor (NK3R) has recently emerged as important in modulating the tonic pulsatile gonadotropin-releasing hormone (GnRH) release. We therefore decided to explore NK3R antagonists as therapeutics for sex-hormone disorders that can potentially benefit from lowering GnRH pulsatility with consequent diminished levels of plasma luteinizing hormone (LH) and correspondingly attenuated levels of circulating androgens and estrogens. The discovery and lead optimization of a novel N-acyl-triazolopiperazine NK3R antagonist chemotype achieved through bioisosteric lead change from the high-throughput screening (HTS) hit is described. A concomitant improvement in the antagonist bioactivity and ligand lipophilic efficiency (LLE) parameter were the principal guidelines in the lead optimization efforts. Examples of advanced lead analogues to demonstrate the amenability of this chemotype to achieving a suitable pharmacokinetic (PK) profile are provided as well as pharmacokinetic-pharmacodynamic (PKPD) correlations to analyze the trends observed for LH inhibition in castrated rats and monkeys that served as preliminary in vivo efficacy models.

  DOI：

  10.1021/jm5017413

文献信息

• [EN] BORON CONTAINING COMPOUNDS AND THEIR USES<br/>[FR] COMPOSÉS CONTENANT DU BORE ET LEURS UTILISATIONS
  申请人：5METIS INC

  公开号：WO2022040157A1

  公开（公告）日：2022-02-24

  The present disclosure relates to novel boron-containing compounds and their novel uses, e.g., as active ingredients that have pesticidal activity. The disclosure also relates to agrochemical compositions and their use in agriculture or horticulture for the control or prevention of infestation of plants, plant parts, plant propagation materials, harvested food crops, or seeds by pests, specifically fungi and nematodes. The disclosure further relates to methods for promoting plant performance and/or curatively or preventively controlling phytopathogens, (particularly fungi and nematodes) on or in a plant, plant parts, plant propagation materials, seeds, harvested fruits, or vegetables.

  本公开涉及新型含硼化合物及其新用途，例如作为具有杀虫活性的活性成分。该公开还涉及农药组合物及其在农业或园艺中用于控制或预防植物、植物部分、植物繁殖材料、收获的食物作物或种子受到害虫（特别是真菌和线虫）侵害的用途。该公开还涉及促进植物生长表现和/或在植物、植物部分、植物繁殖材料、种子、收获的水果或蔬菜上或内部治疗或预防控制植物病原体（特别是真菌和线虫）的方法。
• Optimization of Novel Antagonists to the Neurokinin-3 Receptor for the Treatment of Sex-Hormone Disorders (Part II)
  作者：Hamid R. Hoveyda、Graeme L. Fraser、Guillaume Dutheuil、Mohamed El Bousmaqui、Julien Korac、François Lenoir、Alexey Lapin、Sophie Noël

  DOI：10.1021/acsmedchemlett.5b00117

  日期：2015.7.9

  Further lead optimization on N-acyl-triazolopiperazine antagonists to the neurokinin-3 receptor (NK3R) based on the concurrent improvement in bioactivity and ligand lipophilic efficiency (LLE) is reported. Overall, compound 3 (LLE > 6) emerged as the most efficacious in castrated rat and monkey to lower plasma LH, and it displayed the best off-target safety profile that led to its clinical candidate nomination for the treatment of sex-hormone disorders.