H-hydroxysuccinimide ester of methyldithioacetic acid | 93801-74-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: H-hydroxysuccinimide ester of methyldithioacetic acid
• 英文别名: succinimidyl-S-thiomethylthioglycolate；2,5-Pyrrolidinedione, 1-[[(methyldithio)acetyl]oxy]-；(2,5-dioxopyrrolidin-1-yl) 2-(methyldisulfanyl)acetate
• CAS: 93801-74-2
• 化学式: C₇H₉NO₄S₂
• 分子量: 235.285
• InChiKey: FZGGPAIRZLSNNU-UHFFFAOYSA-N

物化性质

• 沸点：
  341.0±44.0 °C(Predicted)
• 密度：
  1.48±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  114
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  N-甲基-L-丙氨酸 、 H-hydroxysuccinimide ester of methyldithioacetic acid 在 三乙胺 作用下， 以 乙二醇二甲醚 、 水 为溶剂， 反应 2.0h， 生成 N-methyl-N-[(2-methyldithio)-1-oxoethyl]-L-alanine
  参考文献：
  名称：

  Semisynthetic Maytansine Analogues for the Targeted Treatment of Cancer

  摘要：

  Maytansine, a highly cytotoxic natural product, failed as an anticancer agent in human clinical trials because of unacceptable systemic toxicity. The potent cell killing ability of maytansine can be used in a targeted delivery approach for the selective destruction of cancer cells. A series of new maytansinoids, bearing a disulfide or thiol substituent were synthesized. The chain length of the ester side chain and the degree of steric hindrance on the carbon atom bearing the thiol substituent were varied. Several of these maytansinoids were found to be even more potent in vitro than maytansine. The targeted delivery of these maytansinoids, using monoclonal antibodies, resulted in a high, specific killing of the targeted cells in vitro and remarkable antitumor activity in vivo.

  DOI：

  10.1021/jm060319f
• 作为产物：
  描述：

  N-羟基丁二酰亚胺 、 2-(甲基二硫烷基)乙酸 在 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 以60%的产率得到H-hydroxysuccinimide ester of methyldithioacetic acid
  参考文献：
  名称：

  Controlled coupling of aminoglycoside antibiotics to proteins for use in homogeneous enzyme immunoassays

  摘要：

  氨基糖苷抗生素的选择性N-酰化，使用甲基二硫乙酸的N-羟基琥珀酰亚胺酯，随后与甲硫醇或二硫巴比妥醇反应，可制备含硫巯基标记的抗生素。或者，通过与N-乙酰-d,l-同型半胱氨酸硫内酯处理，将亲核硫巯基基团引入抗生素中。这些衍生物可与之前用溴乙酰甘氨酰基修饰过的蛋白质轻松偶联，用于开发均相酶免疫分析的共轭物。

  DOI：

  10.1139/v84-425

文献信息

• Synthesis of<i>S</i>-thiomethyl MAG₃, radiolabelling with technetium-99m and biological evaluation
  作者：Kasturi Sanyal、Sankha Chattopadhyay、Mita Chatterjee Debnath

  DOI：10.1002/jlcr.2954

  日期：2012.8

  Protection of the thiolate function of the mercaptoacetyltriglycine (MAG3) by S-thiomethyl group allows automatic deprotection of the protecting group during technetium-99m radiolabelling by transchelation using stannous chloride dihydrate as reductant. Protection of the thiolate group with S-thiomethyl increases the stability of the ligand, desired complex of high radiochemical purity could be prepared under relatively mild labelling condition (at room temperature) omitting the aeration step. The complex prepared from the S-thiomethyl protected MAG3 ligand were chromatographically (HPLC) and biologically compared with the corresponding complex prepared from the S-benzoylated MAG3 precursor. This result suggests that technetium-99m complex of MAG3 could be prepared from S-thiomethylated MAG3 precursor in comparatively higher purity under relatively milder labelling condition and this method of radiolabelling could be used for the development of less cumbrous single vial MAG3 kit. Copyright © 2012 John Wiley & Sons, Ltd.

  S-硫甲基对巯基乙酰基三甘氨酸 (MAG3) 的硫醇盐功能的保护允许在锝-99m 放射性标记过程中通过使用二水氯化亚锡作为还原剂进行转螯合来自动脱保护保护基。用S-硫甲基保护硫醇基团增加了配体的稳定性，可以在相对温和的标记条件（室温）下制备所需的高放射化学纯度的复合物，省略曝气步骤。由S-硫甲基保护的MAG3配体制备的复合物与由S-苯甲酰化MAG3前体制备的相应复合物进行色谱(HPLC)和生物学比较。该结果表明，在相对温和的标记条件下，可以从S-硫代甲基化MAG3前体制备相对较高纯度的MAG3锝-99m复合物，并且这种放射性标记方法可用于开发不太繁琐的单瓶MAG3试剂盒。版权所有 © 2012 约翰·威利父子有限公司