5-isopropylidene-1-methyl-1,2,5,6-tetrahydropyridine-3-carboxylic acid | 98943-11-4

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 5-isopropylidene-1-methyl-1,2,5,6-tetrahydropyridine-3-carboxylic acid
• 英文别名: 1-Methyl-5-propan-2-ylidene-2,6-dihydropyridine-3-carboxylic acid
• CAS: 98943-11-4
• 化学式: C₁₀H₁₅NO₂
• 分子量: 181.235
• InChiKey: MKRUDXBGNLUBOK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.3
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  40.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  methyl 5-isopropylidene-1-methyl-1,2,5,6-tetrahydropyridine-3-carboxylate 在 氢溴酸 作用下， 以 溶剂黄146 为溶剂， 反应 0.17h， 以80%的产率得到5-isopropylidene-1-methyl-1,2,5,6-tetrahydropyridine-3-carboxylic acid
  参考文献：
  名称：

  Synthesis of alkyl-substituted arecoline derivatives as .gamma.-aminobutyric acid uptake inhibitors

  摘要：

  A series of N-methyltetrahydropyridine-3-carboxylic acids and methyl esters have been synthesized and biologically evaluated. Arecoline (6) was lithiated with LDA in THF to give 7, which was treated with various alkyl halides to afford exclusively the alpha-substituted products 8a-g. Thermodynamic reaction of 7 with carbonyl compounds gave the corresponding 5-substituted arecoline derivatives 10a-q. When phenyldiazonium tetrafluoroborate was used as electrophile, 8h and 9 were obtained. The relative stereochemistry of 10j-o was established by 1H NMR spectroscopy. Compound 12 was obtained by condensation of the silylketene acetal 11 with N-acetylindoxyl. Dehydration of 10a-c yielded 14a-c, respectively. Deprotection of the esters 14a, 14c, and 15 followed by chromatography on an ion-exchange resin gave the amino acids 16a, 16c, and 16d. The alcohol 17 was obtained by LiAlH4 reduction of the corresponding ester 14c. The amino acid 16c displayed a marked inhibitory effect on the synaptosomal uptake of gamma-amino[3H]butyric acid ([3H]GABA). The type of inhibition was competitive with a Ki of 12.9 microM. Compound 16d also inhibited [3H]GABA uptake but was about 10 times weaker than 16c. None of the biologically tested compounds (8a-g, 9, 10a-q, 12, 14a-c, 16a-d, 17) showed any effect in binding studies using [3H]GABA as ligand.

  DOI：

  10.1021/jm00151a020