(R)-3-methylpiperidinium mandelate | 77550-84-6

• 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: (R)-3-methylpiperidinium mandelate
• 英文别名: (R)-3-methylpiperidine (R)-(-)-mandelate；(3R)-3-methylpiperidine (R)-(-)-mandelate；(R)-3-methylpiperidinium (R)-mandelate；(2R)-2-hydroxy-2-phenylacetate;(3R)-3-methylpiperidin-1-ium
• CAS: 77550-84-6
• 化学式: C₆H₁₃N*C₈H₈O₃
• 分子量: 251.326
• InChiKey: URNSREQLJROASC-SUSPOVHDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.55
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  77
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (R)-3-methylpiperidinium mandelate 在 三氟甲磺酸 、 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 、 正丁醇 为溶剂， 反应 24.0h， 生成 (R)-5,7-difluoro-3-methyl-2-(4-(3-methylpiperidin-1-yl)phenyl)quinolin-4(1H)-one
  参考文献：
  名称：

  Rational Design, Synthesis, and Biological Evaluation of Heterocyclic Quinolones Targeting the Respiratory Chain of Mycobacterium tuberculosis

  摘要：

  A high-throughput screen (HTS) was undertaken against the respiratory chain dehydrogenase component, NADH:menaquinone oxidoreductase (Ndh) of Mycobacterium tuberculosis (Mtb). The 11000 compounds were selected for the HTS based on the known phenothiazine Ndh inhibitors, trifluoperazine and thioridazine. Combined HTS (11000 compounds) and in-house screening of a limited number of quinolones (50 compounds) identified similar to 100 hits and four distinct chemotypes, the most promising of which contained the quinolone core. Subsequent Mtb screening of the complete in-house quinolone library (350 compounds) identified a further similar to 90 hits across three quinolone subtemplates. Quinolones containing the amine-based side chain were selected as the pharmacophore for further modification, resulting in metabolically stable quinolones effective against multi drug resistant (MDR) Mtb. The lead compound, 42a (MTC420), displays acceptable antituberculosis activity (Mtb IC50 = 525 nM, Mtb Wayne IC50 = 76 nM, and MDR Mtb patient isolates IC50 = 140 nM) and favorable pharmacokinetic and toxicological profiles.

  DOI：

  10.1021/acs.jmedchem.6b01718
• 作为产物：
  描述：

  D-扁桃酸 、 3-甲基哌啶 以 乙酸乙酯 为溶剂， 反应 0.08h， 以55%的产率得到(R)-3-methylpiperidinium mandelate
  参考文献：
  名称：

  Rational Design, Synthesis, and Biological Evaluation of Heterocyclic Quinolones Targeting the Respiratory Chain of Mycobacterium tuberculosis

  摘要：

  A high-throughput screen (HTS) was undertaken against the respiratory chain dehydrogenase component, NADH:menaquinone oxidoreductase (Ndh) of Mycobacterium tuberculosis (Mtb). The 11000 compounds were selected for the HTS based on the known phenothiazine Ndh inhibitors, trifluoperazine and thioridazine. Combined HTS (11000 compounds) and in-house screening of a limited number of quinolones (50 compounds) identified similar to 100 hits and four distinct chemotypes, the most promising of which contained the quinolone core. Subsequent Mtb screening of the complete in-house quinolone library (350 compounds) identified a further similar to 90 hits across three quinolone subtemplates. Quinolones containing the amine-based side chain were selected as the pharmacophore for further modification, resulting in metabolically stable quinolones effective against multi drug resistant (MDR) Mtb. The lead compound, 42a (MTC420), displays acceptable antituberculosis activity (Mtb IC50 = 525 nM, Mtb Wayne IC50 = 76 nM, and MDR Mtb patient isolates IC50 = 140 nM) and favorable pharmacokinetic and toxicological profiles.

  DOI：

  10.1021/acs.jmedchem.6b01718

文献信息

• Inhibition of <i>Plasmodium falciparum</i> Lysyl‐tRNA Synthetase via a Piperidine‐Ring Scaffold Inspired Cladosporin Analogues
  作者：Palak Babbar、Mizuki Sato、Yogavel Manickam、Siddhartha Mishra、Karl Harlos、Swati Gupta、Suhel Parvez、Haruhisa Kikuchi、Amit Sharma

  DOI：10.1002/cbic.202100212

  日期：2021.7.15

  cladosporin inhibitors against Plasmodium falciparum lysyl-tRNA synthetase (PfKRS). The series retains selectivity against its human counterpart but it was observed that replacing the tetrahydropyran moiety by piperidine reduces potency. Co-crystals of Cla−B and Cla−C with PfKRS reveal key interactions and loop readjustments that allow drug binding and inhibition of the enzyme.

  本研究重点是针对恶性疟原虫赖氨酰-tRNA 合成酶（ Pf KRS）的哌啶环启发枝孢菌素抑制剂的合成和结构分析。该系列保留了针对人类对应物的选择性，但观察到用哌啶取代四氢吡喃部分会降低效力。 Cla−B 和 Cla−C 与Pf KRS 的共晶揭示了关键的相互作用和环重新调整，从而允许药物结合和抑制酶。
• EP1803710
  申请人：——

  公开号：——

  公开（公告）日：——
• Synthesis, Structure−Activity Relationships, and Biological Profiles of a Quinazolinone Class of Histamine H₃ Receptor Inverse Agonists
  作者：Tsuyoshi Nagase、Takashi Mizutani、Shiho Ishikawa、Etsuko Sekino、Takahide Sasaki、Takashi Fujimura、Sayaka Ito、Yuko Mitobe、Yasuhisa Miyamoto、Ryo Yoshimoto、Takeshi Tanaka、Akane Ishihara、Norihiro Takenaga、Shigeru Tokita、Takehiro Fukami、Nagaaki Sato

  DOI：10.1021/jm8003834

  日期：2008.8.1

  A new series of quinazolinone derivatives was synthesized and evaluated as nonimidazole H(3) receptor inverse agonists. 2-Methyl-3-(4-[3-(1-pyrrolidinyl)propy]oxy}phenyl)-5-(trifluoromethyl)-4(3H)-quinazolinone (1) was identified as a promising derivative for further evaluation following optimization of key parameters. Compound 1 has potent H3 inverse agonist activity and excellent selectivity over other histamine receptor subtypes and a panel of 115 unrelated diverse binding sites. Compound 1 also shows satisfactory pharmacokinetic profiles and brain penetrability in laboratory animals. Two hours after oral administration of 30 mg/kg of 1 to SD rats, significant elevation of brain histamine levels was observed where the brain H3 receptor was highly occupied (>90%). On the basis of species differences in P-glycoprotein (P-gp) susceptibility of I between human and rodent P-gps, the observed rodent brain permeability of I is significantly limited by P-gp mediated efflux in rodents, whereas the extent of P-gp mediated efflux in humans should be very small or negligible. The potential of 1 to be an efficacious drug was demonstrated by its excellent brain penetrability and receptor occupancy in P-gp-deficient CF-1 mice.