8-Cyclopentyl-8-isocyanato-1,4-dioxaspiro[4.5]decane | 73312-25-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 8-Cyclopentyl-8-isocyanato-1,4-dioxaspiro[4.5]decane
• CAS: 73312-25-1
• 化学式: C₁₄H₂₁NO₃
• 分子量: 251.326
• InChiKey: GPKOXMJYDABFJD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  47.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  8-Cyclopentyl-8-isocyanato-1,4-dioxaspiro[4.5]decane 在 sodium tetrahydroborate 、 lithium aluminium tetrahydride 作用下， 反应 6.0h， 生成 4-cyclopentyl-4-(dimethylamino)cyclohexanone ethylene ketal
  参考文献：
  名称：

  4-Amino-4-arylcyclohexanones and their derivatives, a novel class of analgesics. 1. Modification of the aryl ring

  摘要：

  Investigation of central nervous system activity of phenylcyclohexylamines was continued by preparation of "reversed" analogues. Following the unexpected finding of analgesic activity with 1-(dimethylamino)-1-phenylcyclohexylamine, the SAR of the series was investigated. Synthesis starts by double Michael reaction of acrylate on arylacetonitriles. Following cyclization, decarboxylation, ketalization, and saponification, the geminally substituted acid is rearranged to the isocyanate by means of (C6H5O)2PON3. Isocyanates were then converted to the title compounds. Analgesic activity is very sensitive to the nature and position of the substitutent on the aromatic ring. The most potent compounds in this series (p-CH3, p-Br) showed 50% the potency of morphine. Deletion of the ring oxygen abolishes activity.

  DOI：

  10.1021/jm00178a014
• 作为产物：
  描述：

  4-carboxy-4-cyclopentylcyclohexanone ethylene ketal 在 叠氮磷酸二苯酯 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 8-Cyclopentyl-8-isocyanato-1,4-dioxaspiro[4.5]decane
  参考文献：
  名称：

  4-Amino-4-arylcyclohexanones and their derivatives, a novel class of analgesics. 1. Modification of the aryl ring

  摘要：

  Investigation of central nervous system activity of phenylcyclohexylamines was continued by preparation of "reversed" analogues. Following the unexpected finding of analgesic activity with 1-(dimethylamino)-1-phenylcyclohexylamine, the SAR of the series was investigated. Synthesis starts by double Michael reaction of acrylate on arylacetonitriles. Following cyclization, decarboxylation, ketalization, and saponification, the geminally substituted acid is rearranged to the isocyanate by means of (C6H5O)2PON3. Isocyanates were then converted to the title compounds. Analgesic activity is very sensitive to the nature and position of the substitutent on the aromatic ring. The most potent compounds in this series (p-CH3, p-Br) showed 50% the potency of morphine. Deletion of the ring oxygen abolishes activity.

  DOI：

  10.1021/jm00178a014