RGDC

• 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: RGDC
• 英文别名: Arg-Gly-Asp-Cys；H-Arg-Gly-Asp-Cys-OH；(3S)-3-[[2-[[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]amino]acetyl]amino]-4-[[(1R)-1-carboxy-2-sulfanylethyl]amino]-4-oxobutanoic acid
• 化学式: C₁₅H₂₇N₇O₇S
• 分子量: 449.488
• InChiKey: AEGSIYIIMVBZQU-CIUDSAMLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -6.3
• 重原子数：
  30
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  253
• 氢给体数：
  9
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  RGDC 在 ammonium hydroxide 、 copper diacetate 、 sodium ascorbate 作用下， 以 甲醇 、 水 为溶剂， 反应 4.0h， 生成 Arg-Gly-Asp-Cys-S-[[1-[2-[(β-D-galactopyranosyl)oxy]ethyl]-1H-1,2,3-triazol-4-yl]methyl]
  参考文献：
  名称：

  ‘Click’ glycosylation of peptides through cysteine propargylation and CuAAC

  摘要：

  半胱氨酸肽通过Cu(I)催化的叠氮化物-炔烃环加成(CuAAC)实现了"点击"糖基化，产率良好。此方法中，肽通过半胱氨酸残基的直接炔基化进行官能化，使其可用于与具有gluco、manno和galacto构型的合适叠氮化糖（自由或保护状态）进行CuAAC反应。在所获得的自由和保护型糖肽中，一系列"glycoRGD"肽被制备并进行了体外血小板聚集测试，结果显示伪糖基化的黏附序列降低了IC50值，从而可能改善体内药代动力学特性。©2014 Elsevier Ltd. 保留所有权利。

  DOI：

  10.1016/j.bmc.2014.09.056

文献信息

• Practical synthesis of maleimides and coumarin-linked probes for protein and antibody labelling via reduction of native disulfides
  作者：Hong Y. Song、Mun H. Ngai、Zhen Y. Song、Paul A. MacAry、Jonathan Hobley、Martin J. Lear

  DOI：10.1039/b904060a

  日期：——

  The cellular tracking, detection and sensing of protein or antibody movement are important aspects to advance our understanding of biomolecular interactions and activity. Antibodies modified with fluorescent dyes are also valuable tools, especially in immunology research. We describe here a proof-of-principle study of a new water-soluble coumarin probe with a maleimide thiol-reacting unit to fluorescently tag biomolecules. Highlights include: (1) a convenient water-based preparation of N-substituted maleimides, (2) a one-pot preparation of activated maleimido-esters, and (3) a bio-conjugation protocol for the selenol-promoted reduction of native disulfide bonds and the ‘site-specific’ labelling of antibodies with no significant loss of activity.

  细胞对蛋白质或抗体运动的追踪、检测和感知是增进我们对生物分子相互作用和活性理解的重要方面。用荧光染料修饰的抗体也是有价值的工具，特别是在免疫学研究中。这里我们描述了一项原理验证研究，涉及一种新的水溶性香豆素探针，该探针具有马来酰亚胺巯基反应单元，用于荧光标记生物分子。重点包括：（1）N-取代马来酰亚胺的便捷水基制备，（2）活化马来酰亚胺酯的一锅法制备，以及（3）硒醇促进的本征二硫键还原和无显著活性损失的抗体“位点特异性”标记的生物偶联方案。
• GLYCOSIDE DERIVATIVES, PREPARATION THEREOF AND USE THEREOF AS PROSTHETIC GROUPS
  申请人：UNIVERSITÉ DE LORRAINE

  公开号：US20160031923A1

  公开（公告）日：2016-02-04

  The present invention relates to glycoside-derived compounds, to the processes for preparing same and to the use thereof as prosthetic groups for radiolabelling biomolecules. These compounds are co-azido-alkyl 6-deoxy-6-[ 18 F]-fluoroglycosides of formula (I), in which: k is equal to 2 or 3; n is an integer between 1 and 5; R is independently H or a C 1 -C 5 alkyl group, m being an integer between 0 and 2 if k=2 and m between 0 and 3 if k=3; and X is chosen from the group comprising O, S, CH 2 and NR′, in which R′ is independently a C 1 -C 5 alkyl group or an aryl group, including all the stereoisomers thereof.

  本发明涉及糖苷衍生化合物，制备这些化合物的方法以及将其用作放射标记生物分子的假体基团。这些化合物是公式（I）的共氮烷基6-去氧-6-[18F]-氟糖苷，其中：k等于2或3；n是1到5之间的整数；R独立地是H或C1-C5烷基，如果k=2，则m是0到2之间的整数，如果k=3，则m是0到3之间的整数；X从包括O、S、CH2和NR′的群体中选择，其中R′独立地是C1-C5烷基或芳基，包括所有的立体异构体。
• OLIGONUCLEOTIDE DERIVATIVE, OLIGONUCLEOTIDE CONSTRUCT USING THE SAME, AND METHODS FOR PRODUCING THEM
  申请人：GIFU UNIVERSITY

  公开号：US20180094017A1

  公开（公告）日：2018-04-05

  The oligonucleotide derivative of the present invention is represented by Formula (1). This derivative is considered to be introduced into cells by binding of its amino sugar chain moiety to a ligand on cell surfaces, and have selective drug delivery function. The oligonucleotide derivative can be easily synthesized and introduced into cells without using a lipofection reagent. wherein—A and B are independently modified or unmodified oligonucleotides whose total chain length is 3 or more, and A and B do not contain hydroxyl groups at 3′ and 5′ ends of the oligonucleotide; S represents a sugar substituent, a peptide chain, or a tocopherol-binding group; and an alkyl group may be bound instead of hydrogen bound to a benzene ring.

  本发明的寡核苷酸衍生物由式（1）表示。该衍生物被认为通过其氨基糖链部分与细胞表面的配体结合而被引入细胞，并具有选择性药物传递功能。该寡核苷酸衍生物可以在不使用脂质体载体的情况下轻松合成并引入细胞。其中，A和B分别是经修饰或未经修饰的寡核苷酸，其总链长为3或更长，且A和B不含有寡核苷酸的3′和5′末端的羟基；S代表糖取代基、肽链或生育酚结合基；和烷基基团可以与苯环上的氢结合而不是氢结合。
• Induction of the mitochondrial permeability transition
  申请人：Hogg John Philip

  公开号：US20060166208A1

  公开（公告）日：2006-07-27

  The present invention relates to process for identifying a compound which induces the mitochondrial permeability transition (MPT) in proliferating cells, wherein said process comprises contacting a cell or cell extract with a compound, determining whether compound binds to adenine nucleotide translocator (ANT), and determining whether the compound selectively induces the MPT in proliferating cells.

  本发明涉及一种用于识别在增殖细胞中诱导线粒体通透性转换（MPT）的化合物的过程，其中所述过程包括将细胞或细胞提取物与化合物接触，确定化合物是否结合腺嘌呤核苷酸转运蛋白（ANT），并确定该化合物是否选择性地诱导增殖细胞中的MPT。
• One-Step Synthesis of [¹⁸F]Fluoro-4-(vinylsulfonyl)benzene: A Thiol Reactive Synthon for Selective Radiofluorination of Peptides
  作者：Gaoyuan Ma、James W. McDaniel、Jennifer M. Murphy

  DOI：10.1021/acs.orglett.0c04054

  日期：2021.1.15

  selectivity and favorable pharmacokinetic properties. Here, we report an operationally simple and broadly applicable approach for the 18F-fluorination of unprotected peptides via a new radiosynthon, [18F]fluoro-4-(vinylsulfonyl)benzene. This reagent demonstrates excellent chemoselectivity at the cysteine residue and rapid 18F-labeling of a diverse scope of peptides to generate stable thioether constructs

  放射性标记的基于肽的分子成像探针利用大生物制剂和小分子的优势，提供出色的选择性和有利的药代动力学特性。在这里，我们报告了一种操作简单且广泛适用的方法，用于通过新的放射性合成子 [ 18 F] 氟-4-（乙烯基磺酰基）苯对未受保护的肽进行18 F-氟化。该试剂在半胱氨酸残基处表现出出色的化学选择性，并对多种肽段进行快速18 F 标记，以生成稳定的硫醚构建体。