N-tert-butoxycarbonyl-L-valine 9-fluorenylmethyl thioester

• 分子结构分类: 有机化合物 - 苯类化合物 - 芴
• 英文名称: N-tert-butoxycarbonyl-L-valine 9-fluorenylmethyl thioester
• 英文别名: Boc-L-Val-SFm；S-(9H-fluoren-9-ylmethyl) (2S)-3-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanethioate
• 化学式: C₂₄H₂₉NO₃S
• 分子量: 411.565
• InChiKey: AVZKOAQZWSATAK-NRFANRHFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.9
• 重原子数：
  29
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  80.7
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N-tert-butoxycarbonyl-L-valine 9-fluorenylmethyl thioester 在 哌啶 、 N,O-双三甲硅基乙酰胺 、 三乙胺 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 64.0h， 生成 N-tert-butoxycarbonyl-L-valyl-L-phenylalanine methyl ester
  参考文献：
  名称：

  In Situ Carboxyl Activation Using a Silatropic Switch: A New Approach to Amide and Peptide Constructions

  摘要：

  The novel reactivity of O-silylthionoesters with amine nucleophiles to generate oxoamides (rather than thioamides) is described. A straightforward first-generation trimethylsilylation protocol using bistrimethylsilylacetamide (BSA) combined with the unique reactivity of the O-silylthionoesters toward 1 degrees and 2 degrees amines to generate oxoamides provides the simplest means of activating a thiol acid for peptide bond formation at neutral pH. Excellent stereoretention is observed.

  DOI：

  10.1021/ja2065158
• 作为产物：
  描述：

  9-芴基甲基硫醇 、 N-Boc-L-缬氨酸 在 N,N'-二环己基碳二亚胺 作用下， 以99%的产率得到N-tert-butoxycarbonyl-L-valine 9-fluorenylmethyl thioester
  参考文献：
  名称：

  用Sanger和Mukaiyama试剂从硫代酸和胺类肽进行无差向异构的嵌段合成

  摘要：

  在游离胺存在下，由受保护氨基酸和肽衍生的C末端硫代酸与Sanger试剂和其他电子不足的芳基卤化物快速反应而形成的高活化硫酯立即与胺形成肽键。该基本无差向异构的方法用于受阻八肽的4 + 4嵌段合成（请参阅方案； Boc，Pbf和Trt是保护基）。

  DOI：

  10.1002/anie.200805782

文献信息

• Epimerization-Free Block Synthesis of Peptides from Thioacids and Amines with the Sanger and Mukaiyama Reagents
  作者：David Crich、Indrajeet Sharma

  DOI：10.1002/anie.200805782

  日期：2009.3.16

  reaction of C‐terminal thioacids derived from protected amino acids and peptides with the Sanger reagent and other electron‐deficient aryl halides in the presence of a free amine immediately form a peptide bond with the amine. This essentially epimerization‐free method was used for the 4+4 block synthesis of a hindered octapeptide (see scheme; Boc, Pbf, and Trt are protecting groups).

  在游离胺存在下，由受保护氨基酸和肽衍生的C末端硫代酸与Sanger试剂和其他电子不足的芳基卤化物快速反应而形成的高活化硫酯立即与胺形成肽键。该基本无差向异构的方法用于受阻八肽的4 + 4嵌段合成（请参阅方案； Boc，Pbf和Trt是保护基）。
• Processes for forming amide bonds and compositions related thereto
  申请人：Liebeskind Lanny S.

  公开号：US08921599B2

  公开（公告）日：2014-12-30

  The disclosure relates to methods for producing amide bonds and reagents related thereto. In some embodiments, the disclosure relates to methods of producing an amide comprising mixing an O-silylated thionoester and an amine under conditions such that an amide is formed. In another embodiment, the disclosure relates to mixing a thiolacid, a silylating agent, and an amine under conditions such that an amide is formed.

  该公开涉及生产酰胺键的方法及相关试剂。在某些实施例中，该公开涉及通过混合O-硅烷基硫酸酯和胺在条件下生产酰胺的方法。在另一实施例中，该公开涉及混合硫酸酯、硅基化剂和胺在条件下形成酰胺。
• Amino Acid and Peptide Synthesis and Functionalization by the Reaction of Thioacids with 2,4-Dinitrobenzenesulfonamides
  作者：David Crich、Kasinath Sana、Songpo Guo

  DOI：10.1021/ol701583t

  日期：2007.10.1

  [GRAPHICS]Readily prepared amino thioacids react at room temperature in DMF in the presence of cesium carbonate with 2,4-dinitrobenzenesulfonamides to give amides. When the sulfonamide is derived from an amino acid the method results in peptide bond formation, whereas the use of carbohydrate derived sulfonamides gives neoglycoconjugates.
• In Situ Carboxyl Activation Using a Silatropic Switch: A New Approach to Amide and Peptide Constructions
  作者：Wenting Wu、Zhihui Zhang、Lanny S. Liebeskind

  DOI：10.1021/ja2065158

  日期：2011.9.14

  The novel reactivity of O-silylthionoesters with amine nucleophiles to generate oxoamides (rather than thioamides) is described. A straightforward first-generation trimethylsilylation protocol using bistrimethylsilylacetamide (BSA) combined with the unique reactivity of the O-silylthionoesters toward 1 degrees and 2 degrees amines to generate oxoamides provides the simplest means of activating a thiol acid for peptide bond formation at neutral pH. Excellent stereoretention is observed.