(2S,3R)-3-(tert-butyldimethylsilanyloxy)-2-isobutylpent-4-enoic acid | 244177-76-2

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (2S,3R)-3-(tert-butyldimethylsilanyloxy)-2-isobutylpent-4-enoic acid
• 英文别名: (2S,3R)-3-[tert-butyl(dimethyl)silyl]oxy-2-(2-methylpropyl)pent-4-enoic acid
• CAS: 244177-76-2
• 化学式: C₁₅H₃₀O₃Si
• 分子量: 286.487
• InChiKey: JGDSLJJWMDMUJD-QWHCGFSZSA-N

物化性质

• 沸点：
  344.4±30.0 °C(Predicted)
• 密度：
  0.926±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.31
• 重原子数：
  19
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (2S,3R)-3-(tert-butyldimethylsilanyloxy)-2-isobutylpent-4-enoic acid 在 lithium aluminium tetrahydride 、 N-羟基-7-氮杂苯并三氮唑 、 Hoveyda-Grubbs catalyst second generation 、 tetra-n-propylammonium perruthenate. 、 N-甲基吗啉氧化物 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 40.33h， 生成 (+)-丁苯那嗪
  参考文献：
  名称：

  A Ring-Closing Metathesis-Based Approach to the Synthesis of (+)-Tetrabenazine

  摘要：

  A modular stereoselective synthesis of the vesicular monoamine transport inhibitors (+)-tetrabenazine ((+)-1) and (+)-alpha-dihydrotetrabenazine ((+)-2) has been developed. The approach is based on amine 4 and acid 5 as the key building blocks, which were elaborated into macrolactam 3 by amide coupling and a subsequent highly E-selective RCM reaction. Macrolactam 3 could be converted into tetrabenazine in three known steps.

  DOI：

  10.1021/ol301612q
• 作为产物：
  描述：

  4-甲基戊酸 在 2,6-二甲基吡啶 、 正丁基锂 、 双氧水 、 三甲基铝 、 三甲基乙酰氯 、 四氯化钛 、 三乙胺 、 lithium hydroxide 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 、 水 为溶剂， 反应 55.42h， 生成 (2S,3R)-3-(tert-butyldimethylsilanyloxy)-2-isobutylpent-4-enoic acid
  参考文献：
  名称：

  A Ring-Closing Metathesis-Based Approach to the Synthesis of (+)-Tetrabenazine

  摘要：

  A modular stereoselective synthesis of the vesicular monoamine transport inhibitors (+)-tetrabenazine ((+)-1) and (+)-alpha-dihydrotetrabenazine ((+)-2) has been developed. The approach is based on amine 4 and acid 5 as the key building blocks, which were elaborated into macrolactam 3 by amide coupling and a subsequent highly E-selective RCM reaction. Macrolactam 3 could be converted into tetrabenazine in three known steps.

  DOI：

  10.1021/ol301612q

文献信息

• A Modular Synthetic Approach toward Exhaustively Stereodiversified Ligand Libraries
  作者：Tiffany Malinky Gierasch、Milan Chytil、Mary T. Didiuk、Julie Y. Park、Jeffrey J. Urban、Steven P. Nolan、Gregory L. Verdine

  DOI：10.1021/ol006560k

  日期：2000.12.1

  This report describes a modular approach to the synthesis of stereodiversified natural product like libraries. Monomers 2 and 3 were coupled in parallel by silyl tethered olefin metathesis to generate all 16 stereoisomers of cis-enediols 1. All 16 stereoisomers were incorporated into chimerae having flanking peptidic segments. These chimerae exhibited a broad range of hydrophobicities, raising the possibility that stereochemical variation might be used to tune the pharmacologic properties of small molecules.