Boc-L-Pro-SH | 74190-09-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Boc-L-Pro-SH
• 英文别名: Boc-Pro-SH；(2S)-1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidine-2-carbothioic S-acid
• CAS: 74190-09-3
• 化学式: C₁₀H₁₇NO₃S
• 分子量: 231.316
• InChiKey: LSIBTUZTSJHWSJ-ZETCQYMHSA-N

物化性质

• 沸点：
  318.8±31.0 °C(Predicted)
• 密度：
  1.181±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  47.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Boc-L-Pro-SH 、 L-缬氨酸甲酯盐酸盐 在 N,O-双三甲硅基乙酰胺 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 10.0h， 以65%的产率得到Boc-Pro-Val-OMe
  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：

  N-tert-butoxycarbonyl-L-proline 9-fluorenylmethyl thioester 在 哌啶 、 盐酸 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 生成 Boc-L-Pro-SH
  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

文献信息

• Synthesis of Chiral 3,4,5,6-Tetrahydro-1,4-thiazin-2-ones (Thiamorpholin-2-ones) - Novel Heterocycles Possessing Enhanced Carbonyl Electrophilicity over their Oxygen Counterparts
  作者：Laurence Harwood、Michael Drew、Ran Yan

  DOI：10.1055/s-2006-951548

  日期：——

  We report herein the first synthesis of chiral derivatives possessing the 1,4-thiazinone core. As predicted, the thiolactone is more susceptible to nucleophilic attack than the equivalent lactone system.

  我们在此报道了首个具有1,4-噻嗪酮核心的手性衍生物的合成。正如预测的那样，硫内酯比等效的内酯系统更易于受到亲核攻击。
• 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.
• Revisiting Oxytocin through the Medium of Isonitriles
  作者：Ting Wang、Samuel J. Danishefsky

  DOI：10.1021/ja3063452

  日期：2012.8.15

  The reaction of thioamino acids and N-terminal peptides, mediated by hindered isonitriles and hydroxybenzotriazole, gives rise to peptide bonds. In one pathway, oxytocin was synthesized by eight such reiterative amidations. In another stereospecific track, oxytocin was constructed by native chemical ligation, wherein the two building blocks were assembled by thioacid amine amidation. The NMR spectra of oxytocin and dihydrooxytocin suggest a high level of preorganization in the latter, perhaps favoring oxidative folding.
• [EN] ARYL, HETEROARYL, AND HETEROCYCLIC COMPOUNDS FOR TREATMENT OF MEDICAL DISORDERS<br/>[FR] COMPOSÉS ARYLE, HÉTÉROARYLE, ET HÉTÉROCYCLIQUES POUR LE TRAITEMENT DE TROUBLES MÉDICAUX
  申请人：ACHILLION PHARMACEUTICALS INC

  公开号：WO2017035353A1

  公开（公告）日：2017-03-02

  Compounds, methods of use, and processes for making inhibitors of complement Factor D comprising Formula I, or a pharmaceutically acceptable salt or composition thereof wherein R12 or R13 on the A group is an aryl, heteroaryl or heterocycle (R32) are provided. The inhibitors of Factor D described herein reduce the excessive activation of complement.
• 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.