(2S)-2-[[(2S)-2-(1,3-dioxoisoindol-2-yl)propanoyl]amino]propanoic acid

• 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: (2S)-2-[[(2S)-2-(1,3-dioxoisoindol-2-yl)propanoyl]amino]propanoic acid
• 化学式: C₁₄H₁₄N₂O₅
• 分子量: 290.276
• InChiKey: DVWXHGDDOMWDIQ-YUMQZZPRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.26
• 重原子数：
  21.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  103.78
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  (2S)-2-[[(2S)-2-(1,3-dioxoisoindol-2-yl)propanoyl]amino]propanoic acid 在 N-甲基吗啉 、 N-羟基-7-氮杂苯并三氮唑 、 silver(I) acetate 、 palladium diacetate 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 1,2-二氯乙烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 33.5h， 生成
  参考文献：
  名称：

  Site-Selective C(sp³)–H Functionalization of Di-, Tri-, and Tetrapeptides at the N-Terminus

  摘要：

  Although the syntheses of novel and diverse peptides rely mainly on traditional coupling using unnatural amino acids, postsynthetic modification of peptides could provide a complementary method for the preparation of nonproteinogenic peptides. Site selectivity of postsynthetic modification of peptides is usually achieved by targeting reactive moieties, such as the thiol group of cysteine or the C-2 position of tryptophan. Herein, we report the development of site-selective functionalizations of inert C(sp(3))-H bonds of N-terminal amino acids in di-, tri-, and tetrapeptides without installing a directing group. The native amino acid moiety within the peptide is used as a ligand to accelerate the C-H activation reaction. In the long run, this newly uncovered reactivity could provide guidance for developing site-selective C(sp(3))-H activation toward postsynthetic modification of a broader range of peptides.

  DOI：

  10.1021/ja510233h
• 作为产物：
  描述：

  邻苯二甲酰基-L-丙氨酸 在 N-甲基吗啉 、 N-羟基-7-氮杂苯并三氮唑 、 palladium 10% on activated carbon 、 氢气 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 甲醇 、 乙酸乙酯 、 N,N-二甲基甲酰胺 为溶剂， 20.0 ℃ 、344.75 kPa 条件下， 反应 3.5h， 生成 (2S)-2-[[(2S)-2-(1,3-dioxoisoindol-2-yl)propanoyl]amino]propanoic acid
  参考文献：
  名称：

  Site-Selective C(sp³)–H Functionalization of Di-, Tri-, and Tetrapeptides at the N-Terminus

  摘要：

  Although the syntheses of novel and diverse peptides rely mainly on traditional coupling using unnatural amino acids, postsynthetic modification of peptides could provide a complementary method for the preparation of nonproteinogenic peptides. Site selectivity of postsynthetic modification of peptides is usually achieved by targeting reactive moieties, such as the thiol group of cysteine or the C-2 position of tryptophan. Herein, we report the development of site-selective functionalizations of inert C(sp(3))-H bonds of N-terminal amino acids in di-, tri-, and tetrapeptides without installing a directing group. The native amino acid moiety within the peptide is used as a ligand to accelerate the C-H activation reaction. In the long run, this newly uncovered reactivity could provide guidance for developing site-selective C(sp(3))-H activation toward postsynthetic modification of a broader range of peptides.

  DOI：

  10.1021/ja510233h

文献信息

• Palladium(II)-Catalyzed Site-Selective C(sp³ )−H Alkynylation of Oligopeptides: A Linchpin Approach for Oligopeptide-Drug Conjugation
  作者：Tao Liu、Jennifer X. Qiao、Michael A. Poss、Jin-Quan Yu

  DOI：10.1002/anie.201706367

  日期：2017.8.28

  C(sp3)−H alkynylation of oligopeptides was developed with tetrabutylammonium acetate as a key additive. Through molecular design, the acetylene motif served as a linchpin to introduce a broad range of carbonyl‐containing pharmacophores onto oligopeptides, thus providing a chemical tool for the synthesis and modification of novel oligopeptide–pharmacophore conjugates by C−H functionalization. Dipeptide

  以乙酸四丁基铵为关键添加剂，开发了钯 (II) 催化的寡肽 C(sp 3 )−H 炔基化反应。通过分子设计，乙炔基序作为关键，将多种含羰基的药效团引入到寡肽上，从而为通过CH官能化合成和修饰新型寡肽-药效团缀合物提供了化学工具。通过该方法合成了与粪甾烷醇和雌二醇的二肽缀合物，其在向核激素受体过度表达的肿瘤细胞靶向药物递送方面具有潜在的应用。