(R)-2-benzylpent-4-en-1-ol

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (R)-2-benzylpent-4-en-1-ol
• 英文别名: (2R)-2-benzylpent-4-en-1-ol
• 化学式: C₁₂H₁₆O
• 分子量: 176.258
• InChiKey: ADJQINCHTSIJKH-GFCCVEGCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  13
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  (R)-2-benzylpent-4-en-1-ol 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 、 palladium carbon (20 wt%) 、 水 、 氢气 、 sodium hydride 、 三乙胺 、 lithium chloride 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 二甲基亚砜 、 mineral oil 为溶剂， 反应 74.42h， 生成 (S)-4-benzyl-N¹-hydroxy-N⁸-phenyloctanediamide
  参考文献：
  名称：

  The structural requirements of histone deacetylase inhibitors: C4-modified SAHA analogs display dual HDAC6/HDAC8 selectivity

  摘要：

  Histone deacetylase (HDAC) enzymes govern the post-translational acetylation state of lysine residues on protein substrates, leading to regulatory changes in cell function. Due to their role in cancers, HDAC proteins have emerged as promising targets for cancer treatment. Four HDAC inhibitors have been approved as anti-cancer therapeutics, including SAHA (Suberoylanilide hydroxamic acid, Vorinostat, Zolinza). SAHA is a nonselective HDAC inhibitor that targets most of the eleven HDAC isoforms. The nonselectivity of SAHA might account for its clinical side effects, but certainly limits its use as a chemical tool to study cancer-related HDAC cell biology. Herein, the nonselective HDAC inhibitor SAHA Was modified at the C4 position of the linker to explore activity and selectivity. Several C4-modified SAHA analogs exhibited dual HDAC6/8 selectivity. Interestingly, (R)-C4-benzyl SAHA displayed 520- to 1300-fold selectivity for HDAC6 and HDAC8 over HDAC1, 2, and 3, with IC50 values of 48 and 27 nM with HDAC6 and 8, respectively. In cellulo testing of the inhibitors was consistent with the observed in vitro selectivity. Docking studies provided a structural rationale for selectivity. The C4-SAHA analogs represent useful chemical tools to understand the role of HDAC6 and HDAC8 in cancer biology and exciting lead compounds for targeting of both HDAC6 and HDAC8 in various cancers. (C) 2017 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2017.10.076
• 作为产物：
  描述：

  (R)-4-benzyl-3-((R)-2-benzylpent-4-enoyl)oxazolidin-2-one 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 以70%的产率得到(R)-2-benzylpent-4-en-1-ol
  参考文献：
  名称：

  The structural requirements of histone deacetylase inhibitors: C4-modified SAHA analogs display dual HDAC6/HDAC8 selectivity

  摘要：

  Histone deacetylase (HDAC) enzymes govern the post-translational acetylation state of lysine residues on protein substrates, leading to regulatory changes in cell function. Due to their role in cancers, HDAC proteins have emerged as promising targets for cancer treatment. Four HDAC inhibitors have been approved as anti-cancer therapeutics, including SAHA (Suberoylanilide hydroxamic acid, Vorinostat, Zolinza). SAHA is a nonselective HDAC inhibitor that targets most of the eleven HDAC isoforms. The nonselectivity of SAHA might account for its clinical side effects, but certainly limits its use as a chemical tool to study cancer-related HDAC cell biology. Herein, the nonselective HDAC inhibitor SAHA Was modified at the C4 position of the linker to explore activity and selectivity. Several C4-modified SAHA analogs exhibited dual HDAC6/8 selectivity. Interestingly, (R)-C4-benzyl SAHA displayed 520- to 1300-fold selectivity for HDAC6 and HDAC8 over HDAC1, 2, and 3, with IC50 values of 48 and 27 nM with HDAC6 and 8, respectively. In cellulo testing of the inhibitors was consistent with the observed in vitro selectivity. Docking studies provided a structural rationale for selectivity. The C4-SAHA analogs represent useful chemical tools to understand the role of HDAC6 and HDAC8 in cancer biology and exciting lead compounds for targeting of both HDAC6 and HDAC8 in various cancers. (C) 2017 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2017.10.076

文献信息

• Direct Regiospecific and Highly Enantioselective Intermolecular α-Allylic Alkylation of Aldehydes by a Combination of Transition-Metal and Chiral Amine Catalysts
  作者：Samson Afewerki、Ismail Ibrahem、Jonas Rydfjord、Palle Breistein、Armando Córdova

  DOI：10.1002/chem.201103366

  日期：2012.3.5

  The first direct intermolecular regiospecific and highly enantioselective α‐allylic alkylation of linear aldehydes by a combination of achiral bench‐stable Pd0 complexes and simple chiral amines as co‐catalysts is disclosed. The co‐catalytic asymmetric chemoselective and regiospecific α‐allylic alkylation reaction is linked in tandem with in situ reduction to give the corresponding 2‐alkyl alcohols

  首次公开了通过非手性稳固的Pd 0配合物和简单的手性胺作为助催化剂的组合，线性醛类的第一个直接的分子间区域特异性和高对映选择性的α-烯丙基烷基化反应。将共催化的不对称化学选择性和区域特异性α-烯丙基烷基化反应与原位还原串联在一起，得到相应的2-烷基醇，其对映体比率很高（er高达98：2； er =对映体比率）。它也是有价值的2-烷基取代的半缩醛，2-烷基-丁烷-1,4-二醇和胺的快速入口。公开了具有生物活性的天然产物（例如，Arundic酸）的简明共催化不对称全合成。
• SuperQuat N-acyl-5,5-dimethyloxazolidin-2-ones for the asymmetric synthesis of α-alkyl and β-alkyl aldehydes
  作者：Steven D. Bull、Stephen G. Davies、Rebecca L. Nicholson、Hitesh J. Sanganee、Andrew D. Smith

  DOI：10.1039/b305623f

  日期：——

  yields and in high ee (generally > 95% ee). This methodology is exemplified by the asymmetric synthesis of (R)-3-isopropenylhept-6-enal, which has previously been used in the synthesis of (3Z,6R)-3-methyl-6-isopropenyl-3,9-decadien-1-yl acetate, a component of the sex pheromones of the California red scale.

  （S）-4-苄基-5,5-二甲基-，（S）-4-苯基-5,5-二甲基-，（S S）-4-异丙基-5,5-二甲基-，（S）-4-苄基-和（S）-4-苄基-5,5-二苯基-恶唑烷-2-酮可直接生成2-苄基-3研究了用DIBAL还原氢化物时的-苯基丙醛。（S）-4-苄基-5,5-二甲基衍生物被证明是抑制内环亲核攻击的最佳选择，还原后得到高产率的2-苄基-3-苯基丙醛。该方法在通过一系列（S）-N-酰基-4-苄基-5,5-二甲基恶唑烷-2-酮的非对映选择性烯醇烷基化反应进行不对称合成手性醛中的应用，得到并排列了α-取代的N -酰基-5，5-二甲基恶唑烷-2-酮（85-94％de），随后用DIBAL还原，可直接得到非外消旋的α-取代醛，而不会损失立体化学完整性（87-94％ee）。通过非对映选择性共轭向（S）-N-酰基-4-苯基-5,5-二甲基恶唑烷酮-2-酮（S）-N-酰基-4-苯基-5,5-二甲
• Application of a Recyclable Pseudoephedrine Resin in Asymmetric Alkylations on Solid Phase
  作者：Panee C. Hutchison、Tom D. Heightman、David J. Procter

  DOI：10.1021/jo0354950

  日期：2004.2.1

  A pseudoephedrine resin has been successfully employed in asymmetric alkylations on solid phase. Immobilized pseudoephedrine amides are conveniently prepared by the one-step attachment of pseudoephedrine to Merrifield resin through the hydroxyl group and subsequent acylation on nitrogen. Deprotonation and alkylation of the resin-bound amides proceeds smoothly. Ketones and alcohols are cleaved from

  伪麻黄碱树脂已成功用于固相不对称烷基化反应中。固定的伪麻黄碱酰胺可通过将伪麻黄碱通过羟基一步一步连接到Merrifield树脂并随后在氮上酰化来方便地制备。与树脂结合的酰胺的去质子化和烷基化反应顺利进行。酮和醇以高对映异构体过量和中等至良好的总收率从树脂上裂解下来。进行了手性酮和醇的小型文库的平行，不对称固相合成，以说明该方法的实用性。最后，伪麻黄碱树脂可以方便地回收和利用，而产物的收率或对映体过量没有明显损失。
• Structural requirements of histone deacetylase inhibitors: C4-modified saha analogs display dual HDAC6/HDAC8 selectivity
  申请人：WAYNE STATE UNIVERSITY

  公开号：US20180057448A1

  公开（公告）日：2018-03-01

  A compound having formula I for histone deacetylase inhibition is provided: or a pharmaceutically acceptable salt or hydrate thereof wherein R is alkyl, C 6-18 aryl, C 5-18 heteroaryl, C 8-22 alkylaryl, C 8-22 alkylheteroaryl, or halo.

  提供一种具有以下化学式I的化合物，用于抑制组蛋白去乙酰化酶：或其药用可接受的盐或水合物，其中R为烷基，C6-18芳基，C5-18杂环芳基，C8-22烷基芳基，C8-22烷基杂环芳基或卤素。
• [EN] PROCESS FOR THE PREPARATION OF (R)-2-ALKYL-3-PHENYL-1-PROPANOLS<br/>[FR] PROCEDE DE PREPARATION DE (R)-2-ALKYLE-3-PHENYLE-1-PROPANOLS
  申请人：SPEEDEL PHARMA AG

  公开号：WO2002002487A1

  公开（公告）日：2002-01-10

  Compounds of formula (I), wherein R1 and R2 are, independently of one another, H,C1-C6alkyl, C1-C6halogenalkyl, C1-C6alkoxy, C1-C6alkoxy-C1-C6alkyl, or C1-C6alkoxy-C1-C6alkyloxy, and R3 is C1-C6alkyl, are obtainable in high yiedls by stereoselective addition of R3-substituted propionic acid esters to R1- and R2-substituted benzaldehydes of formula R-CHO to form corresponding 3-R-3-hydroxy-2-R3-propionic acid esters, conversion of the OH group to a leaving group, subsequent regioselective elimination to form 3-R-2-R3-propenic acid esters, and reduction to corresponding 3-R-2-R3-allyl alcohols and their enantioselective hydrogenation, wherein R is (a).

  化合物的式子为（I），其中R1和R2分别是H，C1-C6烷基，C1-C6卤代烷基，C1-C6烷氧基，C1-C6烷氧基-C1-C6烷基，或C1-C6烷氧基-C1-C6烷氧基，而R3是C1-C6烷基。通过将R3取代的丙酸酯立体选择性地加入到式R-CHO的R1和R2取代苯甲醛中，形成相应的3-R-3-羟基-2-R3-丙酸酯，将OH基团转化为离去基团，随后选择性地消除以形成3-R-2-R3-丙烯酸酯，还原为相应的3-R-2-R3-烯丙醇及其对映选择性加氢，其中R是（a）。