(2E,5S)-5-t-butyldimethylsiloxy-2-hexenoic acid | 133522-12-0

• 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: (2E,5S)-5-t-butyldimethylsiloxy-2-hexenoic acid
• 英文别名: (5S)-5-tert-butyldimethylsiloxy-(2E)-hexenoic acid；(S)-5-t-Butyldimethylsiloxy-2-hexenoic acid；(S,E)-5-((tert-butyldimethylsilyl)oxy)hex-2-enoic acid；(2E,5S)-5-(tert-butyldimethylsiloxy)hex-2-enoic acid；(E,5S)-5-[tert-butyl(dimethyl)silyl]oxyhex-2-enoic acid
• CAS: 133522-12-0
• 化学式: C₁₂H₂₄O₃Si
• 分子量: 244.406
• InChiKey: DAHNOIMDEUNRHA-PCYYEKQGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.43
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 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：

  (2E,5S)-5-t-butyldimethylsiloxy-2-hexenoic acid 在 4-二甲氨基吡啶 、 三氯化铝 、 2,4,6-三氯苯甲酰氯 、 D(+)-10-樟脑磺酸 、 水 、 sodium acetate 、 溶剂黄146 、 三乙胺 、 N,N'-二环己基碳二亚胺 、 锌 作用下， 以 四氢呋喃 、 二氯甲烷 、 xylene 为溶剂， 反应 42.5h， 生成 (+)-macrosphelide G
  参考文献：
  名称：

  New total syntheses of (+)-macrosphelides C, F and G

  摘要：

  The total synthesis of (+)-macrosphelide C 1 (25% overall yield in nine steps), (+)-macrosphelide F 2 (20% overall yield in nine steps) and (+)-macrosphelide G 3 (22% overall yield in nine steps) has been achieved from the chemoenzymatic reaction product (4R,5S)-4-benyloxy-5-hydroxy-(2E)-hexenoate 7. (C) 2002 Published by Flsevier Science Ltd.

  DOI：

  10.1016/s0957-4166(02)00180-5
• 作为产物：
  描述：

  methyl (4R,5S)-4,5-dihydroxyhex-2E-enoate 在 吡啶 、 咪唑 、 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、 sodium hydroxide 、 sodium tetrahydroborate 、 三丁基膦 作用下， 以 1,4-二氧六环 、 甲醇 、 水 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 20.0h， 生成 (2E,5S)-5-t-butyldimethylsiloxy-2-hexenoic acid
  参考文献：
  名称：

  New total syntheses of (+)-macrosphelides C, F and G

  摘要：

  The total synthesis of (+)-macrosphelide C 1 (25% overall yield in nine steps), (+)-macrosphelide F 2 (20% overall yield in nine steps) and (+)-macrosphelide G 3 (22% overall yield in nine steps) has been achieved from the chemoenzymatic reaction product (4R,5S)-4-benyloxy-5-hydroxy-(2E)-hexenoate 7. (C) 2002 Published by Flsevier Science Ltd.

  DOI：

  10.1016/s0957-4166(02)00180-5

文献信息

• Total Synthesis of Grahamimycin A₁
  作者：Kazuo Ohta、Osamu Miyagawa、Hironori Tsutsui、Oyo Mitsunobu

  DOI：10.1246/bcsj.66.523

  日期：1993.2

  grahamimycin A1 (1). The O-7–C-14 fragment [(4S,5S,7R)- or (4R,5R,7R)-7-hydroxy-4,5-isopropylidenedioxyoctanoate] was synthesized from 4,6-dideoxy-α-D-xylo -hexopyranoside. Condensation of the both fragments, followed by deprotection at the terminal hydroxyl- and carboxyl-functions afforded the seco acids of the precursors of 1. While the reaction of the seco acids having 13S-configuration with diethyl azodicarboxylate

  (3R)- 和 (3S)-3-羟基丁酸酯分别转化为 (2E,5R)- 和 (2E,5S)-5-t-丁基二甲基甲硅烷氧基-2-己烯酸，对应于 O-1-C-6 Grahamimycin A1 (1) 的片段。O-7–C-14 片段 [(4S,5S,7R)- 或 (4R,5R,7R)-7-hydroxy-4,5-isopropylidenedioxyoctanoate] 由 4,6-dideoxy-α-D-合成木糖苷。两个片段的缩合，然后在末端羟基和羧基官能团上脱保护得到前体 1 的 seco 酸。 而具有 13S-构型的 seco 酸与偶氮二羧酸二乙酯和三苯基膦的反应在低浓度下提供相应的内酯产率，具有 13R-构型的癸二酸通过 Yamaguchi 程序的大环内酯化以 56% 的产率得到所需的内酯。
• Total Synthesis of Cladosins B and C
  作者：Keith P. Reber、James Mease、Justin Kim

  DOI：10.1021/acs.joc.0c01605

  日期：2020.9.4

  A convergent synthetic route to the fungal metabolites cladosins B and C has been developed, affording these natural products in 29% and 27% overall yield, respectively. The cladosins are rare examples of hybrid polyketides featuring a 3-enamine tetramic acid group derived from l-valine. Key steps in this modular six-step sequence include a DMAP-mediated O- to C-acyl rearrangement to unite the side

  已开发出一条融合的合成途径，即真菌代谢物cladassin B和C，这些天然产物的总收率分别为29％和27％。cladinsins是杂化的聚酮化合物的稀有实例，其具有衍生自1-缬氨酸的3-烯胺四酸基团。该模块化六步序列中的关键步骤包括DMAP介导的O-至C-酰基重排，以使侧链与四酸核结合，并随后使用乙酸铵或HMDS引入胺。
• Formal total synthesis of grahamimycin A1
  作者：Kazuo Ohta、Oyo Mitsunobu

  DOI：10.1016/s0040-4039(00)79484-6

  日期：1991.1

  (S)-t-Butyldimethylsiloxy-2-hexenoic acid and its (R)-isomer were prepared from (S)- and (R)-3-hydroxybutanoic acid esters, respectively. Condensation of the both isomers with 2-(ptoluenesulfonyl)ethyl (4S,5S,7R)-7-hydroxy-4,5-dimethylmethylenedioxyoctanoate, synthesized from methyl 4,6-dideoxy -alpha-D-xylo-hexopyranoside, gave the corresponding esters which were converted into precursors of seco acids of grahamimycin A1 with S or R configuration at the C-6 position (grahamimycin A1 numbering). The (6S)- and (6R)-isomers were respectively subjected to macrolactonization by the use of diethyl azodicarboxylate-triphenylphosphine system or Yamaguchi procedure to afford 11, 12-dihydroxy-grahamimycin A1 whose oxidation to grahamimycin A1 has already been reported.
• Stereoselective Total Synthesis of (-)-Colletol by Prins Cyclisation
  作者：Jhillu Yadav、N. Reddy、P. Reddy、Hissana Ather、Attaluri Prasad

  DOI：10.1055/s-0029-1218679

  日期：2010.5

  A simple and efficient asymmetric total synthesis of the bis-macrolactone (-)-colletol was accomplished, proving the versatility of the Prins cyclisation in natural product synthesis. The synthesis mainly relies upon reductive opening of a pyran ring, Mitsunobu inversion, the Wittig reaction, and Yamaguchi macrolactonisation as the key steps.
• Synthesis of Macrosphelides with a Thiazole Side Chain:  New Antitumor Candidates Having Apoptosis-Inducing Property
  作者：Yuji Matsuya、Takanori Kawaguchi、Kentaro Ishihara、Kanwal Ahmed、Qing-Li Zhao、Takashi Kondo、Hideo Nemoto

  DOI：10.1021/ol061922v

  日期：2006.9.1

  Hybrid compounds of macrosphelides and epothilones, both of which are natural macrolides having a 16-membered skeleton, were designed and synthesized using a ring-closing metathesis (RCM) strategy. Some of these hybrids were found to exhibit notable apoptosis-inducing activity against human lymphoma cells with higher potency than parent natural macrosphelides, and to be a promising lead compound for development of a new antitumor agent.