Efficient Synthesis of 1,2,4-Dithiazolidine-3,5-diones [Dithiasuccinoyl-Amines] from Bis(chlorocarbonyl)disulfane Plus Bis(trimethylsilyl)amines
作者:Michael J. Barany、Robert P. Hammer、R. B. Merrifield、George Barany
DOI:10.1021/ja0455446
日期:2005.1.1
dithiasuccinoyl (Dts)-amine, serves as a readily removable amino protecting group for building blocks used in syntheses of peptides, glycopeptides, and PNA; it is also useful as a masked isocyanate and (inversely) as a sulfurization reagent for trivalent phosphorus. Bis(chlorocarbonyl)disulfane, the two-sulfur analogue of succinyl chloride, has been envisioned as a reagent for facile single-step elaboration of the
Insights into the Mechanism of Thiol-Triggered COS/H<sub>2</sub>S Release from <i>N</i>-Dithiasuccinoyl Amines
作者:Shengchao Zhou、Yujie Mou、Miao Liu、Qian Du、Basharat Ali、Jurupula Ramprasad、Chunhua Qiao、Li-Fang Hu、Xingyue Ji
DOI:10.1021/acs.joc.0c00559
日期:2020.7.2
a viable strategy to deliver H2S in a biological system. Herein, we describe N-dithiasuccinoyl amines as thiol-triggered COS/H2S donors. Notably, thiol species especially GSH and homocysteine can trigger the release of both COS and H2S directly from several specific analogues via an unexpected mechanism. Importantly, two representative analogues Dts-1 and Dts-5 show intracellular H2S release, and Dts-1
碳酸酐酶水解羰基硫(COS)形成H 2 S已被证明是在生物系统中递送H 2 S的可行策略。在本文中,我们将N-二硫代琥珀酰胺描述为硫醇触发的COS / H 2 S供体。值得注意的是,硫醇物种尤其GSH和高半胱氨酸可以触发COS和H的释放2通过一个意想不到的机构S直接从几个特定的类似物。重要的是,两个代表性的类似物Dts-1和Dts-5显示了细胞内H 2 S的释放,而Dts-1在LPS挑战的小胶质细胞中具有强大的抗炎作用。结论,N-二硫代琥珀酰胺可作为有前途的COS / H 2 S供体,用于H 2 S生物学研究或基于H 2 S的治疗方法开发。
A stereocontrolled route to protected isocyanates from alcohols
作者:Daniel J. Cane-Honeysett、Michael D. Dowle、Mark E. Wood
DOI:10.1016/j.tet.2004.12.042
日期:2005.2
Full details are given for a modified Mitsunobu approach to the formation of N-alkylated 1,2,4-dithiazolidine-3,5-diones 2 from a wide range of alcohols 10 with predominantly, inversion of configuration. The resulting products 2 can be regarded as protected isocyanates 6.
Unusual reactivity of N-acyl imides: N-aroyl-1,2,4-dithiazolidine-3,5-diones as acyl isocyanate equivalents
作者:Mark E. Wood、Victoria M. Annis、Clifford D. Jones
DOI:10.1039/b814677b
日期:——
Crystalline samples of three N-aroyl-1,2,4-dithiazolidine-3,5-diones have been prepared as the first examples of a novel class of compound that displays the reactivity of an acyl isocyanate when treated with nucleophiles.
A New and Simple Synthesis of Sulfonyl Ureas from Sulfonamides and N-Alkyl-1,2,4-dithiazolidine-3,5-diones
作者:Kelly Chibale、Richard Gessner
DOI:10.1055/s-0029-1217960
日期:2009.10
A new, short, and simple synthetic approach to sulfonyl ureas is reported. The method involves the transformation of readily synthesized N-alkyl-1,2,4-dithiazolidine-3,5-diones by reaction with primary sulfonamides. Sulfonyl ureas were obtained in moderate to high yields.