2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-2naphthalenyl)-3-methyl-2-butenal | 169126-70-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 四氢化萘
• 英文名称: 2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-2naphthalenyl)-3-methyl-2-butenal
• 英文别名: 3-Methyl-2-(3,5,5,8,8-pentamethyl-6,7-dihydronaphthalen-2-yl)but-2-enal
• CAS: 169126-70-9
• 化学式: C₂₀H₂₈O
• 分子量: 284.442
• InChiKey: SHYGAROEOXFFNC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-2naphthalenyl)-3-methyl-2-butenal 在 氢氧化钾 、 双(三甲基硅烷基)氨基钾 作用下， 以 甲醇 、 水 为溶剂， 反应 1.67h， 生成 (2E,4E)-6-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-naphthalenyl)-3,7-dimethyl-2,4,6-octatrienoic acid
  参考文献：
  名称：

  Conformational Effects on Retinoid Receptor Selectivity. 2. Effects of Retinoid Bridging Group on Retinoid X Receptor Activity and Selectivity

  摘要：

  The natural retinoid 9-cis-retinoic acid is an activating ligand for both the retinoic acid receptors (RARs) and the retinoid X receptors (RXRs), which are members of the retinoid/thyroid hormone/steroid hormone family of nuclear receptor proteins that activate gene transcription through specific response elements. The pharmacophoric groups necessary to confer RXR selectivity were established by evaluating the ability of 21 conformationally restricted retinoids to activate, the TREpal retinoic acid receptor response element for gene transcription in the presence of one of the three RAR subtypes or RXR alpha. In contrast to those retinoids selective for the RARs, these RXR-selective retinoids have one less atom in the bridge linking the hydrophobic and carboxylic acid termini of the retinoid skeleton. Therefore, a one-carbon bridge replaces the 19-methyl group and SE-double bond of S-cis-retinoic acid and is further functionalized by inclusion in an isopropylidene group, a dioxolane ring, or a cyclopropane ring for optimal RXR alpha activity and selectivity. In addition, the beta-geranylidene and 20-methyl-(11E,13E)-dienoic acid groups of g-cis-retinoic acid are replaced by a 5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2 naphthalenyl ring and a 4-carboxylphenyl ring, respectively, for optimal activation and selectivity. RXR alpha; selectivity is reduced on replacement of the 4-carboxylphenyl group by a 2-carboxyl-5-thienyl group or the S-cis-retinoic acid methylpentadienoic acid terminus.

  DOI：

  10.1021/jm00017a021
• 作为产物：
  描述：

  2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-naphthalenyl)-3-methyl-2-buten-1-ol 在 吡啶 、 chromium(VI) oxide 作用下， 以 二氯甲烷 为溶剂， 反应 0.08h， 生成 2-(5,6,7,8-tetrahydro-3,5,5,8,8-pentamethyl-2-2naphthalenyl)-3-methyl-2-butenal
  参考文献：
  名称：

  Conformational Effects on Retinoid Receptor Selectivity. 2. Effects of Retinoid Bridging Group on Retinoid X Receptor Activity and Selectivity

  摘要：

  The natural retinoid 9-cis-retinoic acid is an activating ligand for both the retinoic acid receptors (RARs) and the retinoid X receptors (RXRs), which are members of the retinoid/thyroid hormone/steroid hormone family of nuclear receptor proteins that activate gene transcription through specific response elements. The pharmacophoric groups necessary to confer RXR selectivity were established by evaluating the ability of 21 conformationally restricted retinoids to activate, the TREpal retinoic acid receptor response element for gene transcription in the presence of one of the three RAR subtypes or RXR alpha. In contrast to those retinoids selective for the RARs, these RXR-selective retinoids have one less atom in the bridge linking the hydrophobic and carboxylic acid termini of the retinoid skeleton. Therefore, a one-carbon bridge replaces the 19-methyl group and SE-double bond of S-cis-retinoic acid and is further functionalized by inclusion in an isopropylidene group, a dioxolane ring, or a cyclopropane ring for optimal RXR alpha activity and selectivity. In addition, the beta-geranylidene and 20-methyl-(11E,13E)-dienoic acid groups of g-cis-retinoic acid are replaced by a 5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2 naphthalenyl ring and a 4-carboxylphenyl ring, respectively, for optimal activation and selectivity. RXR alpha; selectivity is reduced on replacement of the 4-carboxylphenyl group by a 2-carboxyl-5-thienyl group or the S-cis-retinoic acid methylpentadienoic acid terminus.

  DOI：

  10.1021/jm00017a021