Bis(dialkylaminethiocarbonyl)disulfides as Potent and Selective Monoglyceride Lipase Inhibitors
摘要:
Monoglyceride lipase (MGL) inhibition may offer an approach in treating diseases in which higher 2-arachidonoyglycerol activity would be beneficial. We report here the synthesis and pharmacological evaluation of bis(dialkylaminethiocarbonyl)disulfide derivatives as irreversible MGL inhibitors. Inhibition occurs through interactions with MGL C208 and C242 residues, and these derivatives exhibit high inhibition selectivity over fatty acid amide hydrolase, another endocannabinoid-hydrolyzing enzyme.
Characterization of the nucleophilic reactivities of thiocarboxylate, dithiocarbonate and dithiocarbamate anions
作者:Xin-Hua Duan、Biplab Maji、Herbert Mayr
DOI:10.1039/c1ob06245j
日期:——
The kinetics of the reactions of thiocarboxylate and thiocarbonate anions with benzhydrylium ions have been determined in acetonitrile solution using laser-flash photolytic techniques. The second-order rate constants (k) correlate linearly with the electrophilicity parameters E of the benzhydrylium ions, as required by the correlation log k (20 °C) = sN(N + E) (J. Am. Chem. Soc., 2001, 123, 9500–9512), allowing us to calculate the nucleophile-specific parameters N and sN for these anions. With these parameters, a direct comparison of the reactivities of thiocarboxylate, dithiocarbonate and dithiocarbamate anions with other nucleophiles becomes possible.
运用激光闪光光解技术,在乙腈溶液中测定了硫羧酸根和硫碳酸根离子与苯并二氢吡喃离子反应的动力学。二级速率常数(k)与苯并二氢吡喃离子的亲电参数 E 呈线性相关,符合关系式 log k(20 °C)= sN(N + E)(J. Am. Chem. Soc., 2001, 123, 9500–9512),从而能够计算出这些阴离子的亲核体特异性参数 N 和 sN。有了这些参数,就可以直接比较硫羧酸根、二硫代碳酸根和二硫代氨基甲酸根离子与其他亲核体的反应活性。
Studies on phenylmercury(II) complexes of nitrogen–sulfur ligands: Synthesis, spectral, structural characterization, TD-DFT and photoluminescent properties
作者:A. Bharti、P. Bharati、Ram Dulare、M.K. Bharty、Dheeraj K. Singh、N.K. Singh
DOI:10.1016/j.poly.2013.08.032
日期:2013.11
and orthorhombic system, space group P1¯, C 2/c and Pbca, respectively. The crystal X-ray studies revealed that complexes 2 and 3 both form a one dimensional metal–organic structure, with a linear N–Hg–Ph and S–Hg–Ph core respectively. The most noteworthy features in complex 2 is that the ligand bound phenylmercury cation is stabilized via intramolecular as well as intermolecular weak Hg⋯N secondary interactions
乙酸苯汞(II)与N-苯基-5-(吡啶-4-基)-1,3,4-噻二唑-2-胺(Hppt)(1)和N(4-甲基哌嗪)-1的反应-硫代二硫代硫酸酯[K(mpcdt)]产生[PhHg(ppt)](2)和[PhHg(mpcdt)](3)。该复合物已通过元素分析,IR,UV-Vis,1 H和13 C NMR光谱进行了表征。配体Hppt(1)-和配合物2和3在三斜晶系,单斜晶系和正交晶系中分别为空间群P1 ,C 2 / c和Pbca结晶。晶体X射线研究表明,络合物2和3都形成一维金属有机结构,分别具有线性N–Hg–Ph和S–Hg–Ph核。配合物2中最值得注意的特征是配体结合的苯基汞阳离子通过分子内以及分子间弱的Hg⋯N次级相互作用而稳定。配合物2的晶体结构也通过弱的π⋯π和C–H⋯π相互作用而稳定。配合物3的晶体结构通过分子间/分子间Hg⋯S相互作用和C–H⋯π相互作用得以稳定。配体Hppt和[K(m
Synthesis, spectral and structural characterization of cobalt(III) dithiocarbamato complexes: Catalytic application for the solvent free enamination reaction
using 1–2 mol% of the above cobalt(III) complexes as catalysts and these have been characterized by NMR, GC–MS and X-ray crystallography. Complexes 1, 2 and 3 are stabilized by intermolecular C–H⋯S interactions, leading to the formation of supramolecular architectures. Thermogravimetric analysis of complexes 1 and 2 have been investigated by TG-DTA, which indicate that cobalt sulfide is formed as the
2‐[2‐(N, N‐Disubstituted thiocarbamoyl‐sulfanyl)acylamino ]thiazol‐4‐yl}acetic acid ethyl esters (3a—x) were synthesized by the reaction of potassium salts of N, N‐disubstituted dithiocarbamoic acids with [2‐(2‐chloroalkanoyl)amino‐thiazol‐4‐yl]acetic acid ethyl esters. The structures of the synthesized compounds were confirmed by elemental analyses, UV, IR, 1H‐NMR, and EI mass spectral data. The
a new series of 2-[4-(pyrimidin-2-yl)piperazin-1-yl]-2-oxoethyl 4-substituted piperazine-1-carbodithioate derivatives (2a-n) were synthesized and screened for their monoamine oxidase A and B inhibitory activity. The structures of compounds were elucidated using spectroscopic methods and some physicochemical properties of new compounds were predicted using Molinspiration and MolSoft programs. Compounds