(2E,4E,6E)-3,7-dimethyl-9-(2',6',6'-trimethylcyclohex-1'-en-1'-yl)nona-2,4,6-trien-1-ol | 115797-12-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: (2E,4E,6E)-3,7-dimethyl-9-(2',6',6'-trimethylcyclohex-1'-en-1'-yl)nona-2,4,6-trien-1-ol
• 英文别名: All-trans-7,8-dihydroretinol；(2E,4E,6E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6-trien-1-ol
• CAS: 115797-12-1
• 化学式: C₂₀H₃₂O
• 分子量: 288.473
• InChiKey: XEMSPUZLYVPKPX-SHGBQBHBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.7
• 重原子数：
  21
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (2E,4E,6E)-3,7-dimethyl-9-(2',6',6'-trimethylcyclohex-1'-en-1'-yl)nona-2,4,6-trien-1-ol 生成 [(2E,4E,6E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6-trienyl] hexadecanoate
  参考文献：
  名称：

  LAW, WING C.;RANDO, ROBERT R.;CANONICA, STEFANO;DERGUINI, FADILA;NAKANISH+, J. AMER. CHEM. SOC., 110,(1988) N 17, C. 5915-5917

  摘要：

  DOI：
• 作为产物：
  描述：

  7,8-dihydroretinal 生成 (2E,4E,6E)-3,7-dimethyl-9-(2',6',6'-trimethylcyclohex-1'-en-1'-yl)nona-2,4,6-trien-1-ol
  参考文献：
  名称：

  LAW, WING C.;RANDO, ROBERT R.;CANONICA, STEFANO;DERGUINI, FADILA;NAKANISH+, J. AMER. CHEM. SOC., 110,(1988) N 17, C. 5915-5917

  摘要：

  DOI：

文献信息

• Synthesis of C11-to-C14 methyl-shifted all-<i>trans</i>-retinal analogues and their activities on human aldo-keto reductases
  作者：Aurea Rivas、Raquel Pequerul、Vito Barracco、Marta Domínguez、Susana López、Rafael Jiménez、Xavier Parés、Rosana Alvarez、Jaume Farrés、Angel R. de Lera

  DOI：10.1039/d0ob01084g

  日期：——

  The synthesis of these retinoids was based on the formation of a C10–C11 single bond of the pentaene skeleton starting from a trienyl iodide and the corresponding dienylstannanes and dienylsilanes, using the Stille–Kosugi–Migita and Hiyama–Denmark cross-coupling reactions, respectively. Since these reagents differ by the location and presence of methyl groups at the dienylorganometallic fragment, the

  人醛基酮还原酶（AKR）是参与将所有反式-视网膜还原为全反式-视黄醇（维生素A）的酶，因此有助于控制生物体中类维生素A的水平。一系列C11-C14甲基转移（相对于天然C13-甲基）全反式的构效关系研究已经报道了-视网膜类似物作为AKR的假定底物。这些类维生素A的合成基于戊烯骨架的C10–C11单键的形成，分别从Stille–Kosugi–Migita和Hiyama–Denmark交叉偶联反应开始，从三苯基碘化物以及相应的二苯基锡烷和二苯基硅烷开始。 。由于这些试剂的不同之处在于二烯基有机金属片段上甲基的位置和存在，因此该研究还提供了对不同位置异构体进行交叉偶联的能力以及这些过程对位阻的敏感性的见解。所得的C11至C14甲基转移的全反式尽管已注意到底物特异性的相关差异，但在用AKR1B1和AKR1B10酶进行测试时，发现视网膜类似物是活性底物。对于AKR1B1，所有类似物均比母体全反式视网膜表现出更高的催化效率（k
• Stereoselective Synthesis by Olefin Metathesis and Characterization of η-Carotene (7,8,7′,8′-tetrahydro-β,β-carotene)
  作者：Noelia Fontán、Rosana Alvarez、Angel R. de Lera

  DOI：10.1021/np300230t

  日期：2012.5.25

  The purported structure of the elusive η-carotene (7,8,7′,8′-tetrahydro-β,β-carotene), a natural C40 carotenoid first detected in the berries of Lonicera japonica and in citrus fruits sixty years ago, has been synthesized by olefin cross-metathesis/dimerization of a C21 polyene derived from trans-7,8-dihydroretinal, thus allowing the full characterization of this highly unstable natural product.

  难以捉摸的η-胡萝卜素（7,8,7'，8'-四氢-β，β-胡萝卜素）的结构，这是一种天然的C 40类胡萝卜素，最早是在60年前的忍冬属植物的浆果和柑橘类水果中发现的，已经通过反式-7，8-二氢视黄醛衍生的C 21多烯的烯烃交叉复分解/二聚反应合成了α-己内酰胺，因此可以完全表征这种高度不稳定的天然产物。
• ——
  作者：LOEV B.、 JONES HOWARD、 CHAN WAN-KIT

  DOI：——

  日期：——
• LAW, WING C.;RANDO, ROBERT R.;CANONICA, STEFANO;DERGUINI, FADILA;NAKANISH+, J. AMER. CHEM. SOC., 110,(1988) N 17, C. 5915-5917
  作者：LAW, WING C.、RANDO, ROBERT R.、CANONICA, STEFANO、DERGUINI, FADILA、NAKANISH+

  DOI：——

  日期：——
• Specificity of Zebrafish Retinol Saturase:  Formation of All-<i>trans</i>-13,14-dihydroretinol and All-<i>trans</i>-7,8- dihydroretinol
  作者：Alexander R. Moise、Andrea Isken、Marta Domínguez、Angel R. de Lera、Johannes von Lintig、Krzysztof Palczewski

  DOI：10.1021/bi062147u

  日期：2007.2.1

  Metabolism of vitamin A, all-trans-retinol, leads to the formation of 11-cis-retinaldehyde, the visual chromophore, and all-trans-retinoic acid, which is involved in the regulation of gene expression through the retinoic acid receptor. Enzymes and binding proteins involved in retinoid metabolism are highly conserved across species. We previously described a novel mammalian enzyme that saturates the 13-14 double bond of all-trans-retinol to produce all-trans-13,14-dihydroretinol, which then follows the same metabolic fate as that of all-trans-retinol. Specifically, all-trans-13,14-dihydroretinol is transiently oxidized to all-trans-13,14-dihydroretinoic acid before being oxidized further by Cyp26 enzymes. Here, we report the identification of two putative RetSat homologues in zebrafish, one of which, zebrafish RetSat A (zRetSat A), also had retinol saturase activity, whereas zebrafish RetSat B (zRetSat B) was inactive under similar conditions. Unlike mouse RetSat (mRetSat), zRetSat A had an altered bond specificity saturating either the 13-14 or 7-8 double bonds of all-trans-retinol to produce either all-trans-13,14-dihydroretinol or all-trans-7,8-dihydroretinol, respectively. zRetSat A also saturated the 13-14 or 7-8 double bonds of all-trans-3,4-didehydroretinol (vitamin A2), a second endogenous form of vitamin A in zebrafish. The dual enzymatic activity of zRetSat A displays a newly acquired specificity for the 13-14 double bond retained in higher vertebrates and also the evolutionarily preserved activity of bacterial phytoene desaturases and plant carotenoid isomerases. Expression of zRetSat A was restricted to the liver and intestine of hatchlings and adult zebrafish, whereas zRetSat B was expressed in the same tissues but at earlier developmental stages. Exogenous all-trans-retinol, all-trans-13,14-dihydroretinol, or all-trans-7,8-dihydroretinol led to the strong induction of the expression of the retinoic acid-metabolizing enzyme, Cyp26A1, arguing for an active signaling function of dihydroretinoid metabolites in zebrafish. These findings point to a conserved function but altered specificity of RetSat in vertebrates, leading to the generation of various dihydroretinoid compounds, some of which could have signaling functions.