8S-labda-12Z,13-diene | 199438-58-9

• 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: 8S-labda-12Z,13-diene
• 英文别名: (1S,2S,4aS,8aR)-2,5,5,8a-tetramethyl-1-[(2Z)-3-methylpenta-2,4-dienyl]-1,2,3,4,4a,6,7,8-octahydronaphthalene
• CAS: 199438-58-9
• 化学式: C₂₀H₃₄
• 分子量: 274.49
• InChiKey: CCUCKIVLXJSLHV-ODKXSJGWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  8S-labda-12Z,13-diene 在 二甲基硫 、 叔丁基锂 、 氧气 、 sodium hydride 、 对甲苯磺酸 、 臭氧 作用下， 以 四氢呋喃 、 苯 为溶剂， 反应 18.75h， 生成 8S-1,2-di-O-benzyl-3-(9'-drimen-11'-yl)-4-O-methylbenzenetriol
  参考文献：
  名称：

  Synthesis of wiedendiol-A and wiedendiol-B from labdane diterpenes

  摘要：

  Two efficient enantiospecific syntheses of wiedendiol-A (1) from (-)-sclareol (7), via 11-bromo-8-drimene (11) and 8-drimen-11-al (3), are reported. The first enantiospecific synthesis of wiedendiol-B (2), via 8S,9S-driman-11-al (26), by two alternative routes starting from 7 and (+)-cis-abienol (8) is also described. 21 prepared from protocatechualdehyde (17) was used as aromatic synthon for preparing 1 and 2. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(98)00235-x
• 作为产物：
  描述：

  (+)-顺式-枞醇 在 sodium cyanoborohydride 、 zinc(II) iodide 作用下， 以 二氯甲烷 为溶剂， 反应 2.25h， 生成 8R-labda-12Z,13-diene 、 8S-labda-12Z,13-diene
  参考文献：
  名称：

  Synthesis of wiedendiol-A and wiedendiol-B from labdane diterpenes

  摘要：

  Two efficient enantiospecific syntheses of wiedendiol-A (1) from (-)-sclareol (7), via 11-bromo-8-drimene (11) and 8-drimen-11-al (3), are reported. The first enantiospecific synthesis of wiedendiol-B (2), via 8S,9S-driman-11-al (26), by two alternative routes starting from 7 and (+)-cis-abienol (8) is also described. 21 prepared from protocatechualdehyde (17) was used as aromatic synthon for preparing 1 and 2. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(98)00235-x

文献信息

• Enantiospecific Synthesis of Wiedendiol-B from (−)-Sclareol and (+)-cis-Abienol
  作者：Alejandro F. Barrero、Enrique J. Alvarez-Manzaneda、Rachid Chahboun

  DOI：10.1016/s0040-4039(97)10119-8

  日期：1997.11

  The first enantiospecific synthesis of the cholesteryl ester transfer protein (CETP) inhibitor wiedendiol-B (1) is described. The drimanic synthon was prepared from (-)-sclareol (4) and (+)-cis-abienol (13) by two alternative routes. The key steps of the reaction sequences are the chemo-and diastereoselective hydrogenation of the C-8-C-9 double bond of enal 6 and the stereoselective cationic hydrogenation of the hydroxyl group of 13, respectively, and the selective reduction of benzyl groups of 15. (C) 1997 Elsevier Science Ltd.
• Synthesis of wiedendiol-A and wiedendiol-B from labdane diterpenes
  作者：Alejandro F. Barrero、Enrique J. Alvarez-Manzaneda、Rachid Chahboun

  DOI：10.1016/s0040-4020(98)00235-x

  日期：1998.5

  Two efficient enantiospecific syntheses of wiedendiol-A (1) from (-)-sclareol (7), via 11-bromo-8-drimene (11) and 8-drimen-11-al (3), are reported. The first enantiospecific synthesis of wiedendiol-B (2), via 8S,9S-driman-11-al (26), by two alternative routes starting from 7 and (+)-cis-abienol (8) is also described. 21 prepared from protocatechualdehyde (17) was used as aromatic synthon for preparing 1 and 2. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.