报道了反式-(+-)-N-甲基-2-(3-吡啶基)-2-四氢硫代吡喃氨基甲磺酰胺+++ e 1-氧化物(8a,RP 49356)和类似物的合成和生物活性。这些化合物构成K(+)通道开放剂的新结构类。讨论了吡啶基,硫代酰胺和硫杂环上的变化对体外K(+)通道开放反应性的影响。为了活性,优选3-吡啶基或3-喹啉基,小的N-烷基硫代酰胺官能团和氧化亚砜环,其中亚砜与硫代酰胺具有反式关系。选择的化合物在降压麻醉的大鼠中静脉内测试降压作用,其活性反映了其体外K(+)通道的开放活性。
For the purpose of providing a GSK-3β inhibitor containing an oxadiazole compound or a salt thereof or a prodrug thereof useful as an agent for the prophylaxis or treatment of a GSK-3β-related pathology or disease, the present invention provides a GSK-3β inhibitor containing a compound represented by the formula (I):
wherein each symbol is as defined in the specification, or a salt thereof or a prodrug thereof.
Electron Transfer to Sulfides and Disulfides: Intrinsic Barriers and Relationship between Heterogeneous and Homogeneous Electron-Transfer Kinetics
作者:Ana Belèn Meneses、Sabrina Antonello、Maria Carmen Arévalo、Concepcion Carmen González、Jadab Sharma、Andrea N. Wallette、Mark S. Workentin、Flavio Maran
DOI:10.1002/chem.200700382
日期:2007.9.28
dissociative electrontransfer (DET) which causes cleavage of the C(alkyl)--S or S--S bond. A generalized picture of how the intrinsic electron-transfer barrier depends on molecular features, ring substituents, and the presence of spacers between the frangible bond and aromatic groups was established. The reduction mechanism was found to undergo a progressive (and now predictable) transition between common
The synthesis and antimycobacterial properties of 4-(substituted benzylsulfanyl)pyridine-2-carboxamides
作者:Vera Klimesova、Petra Herzigová、Karel Palát、Miloš Macháček、Jiřina Stolaříková、Hans Martin Dahse、Ute Möllmann
DOI:10.3998/ark.5550190.0013.308
日期:——
Substitutedbenzylsulfanyl)pyridine-2-carboxamides 6 were synthesized by a three-step synthesis starting from 4-chloropyridine-2-carboxylic acid and substituted benzyl thiols, with the exception of nitroderivatives. The compounds were evaluated for their anti-TB activity against M. tuberculosis, non-tuberculous mycobacteria (M. kansasii and M. avium), and MDR strains of M. tuberculosis. The activities
Preparation of a series of 5-methyl-3-(substituted)-[1,2,4]triazines
作者:Moses G. Gichinga、Jeremy P. Olson、Elizabeth Butala、Brian P. Gilmour、Hernán H. Navarro、F. Ivy Carroll
DOI:10.1016/j.tetlet.2011.04.075
日期:2011.6
Procedures for the synthesis of thirty-six 5-methyl-3-(substituted)-[1,2,4]triazines have been described. These compounds were evaluated for antagonism at metabotropic glutamate receptor subtype 5 (mGluR5). Two compounds, 5b and 3c, were determined to be low micromolar inhibitors of mGluR5.
Metal-free organocatalytic S-formylation of thiols using CO2
作者:Subir Maji、Arpan Das、Madhur Mahesh Bhatt、Swadhin K. Mandal
DOI:10.1038/s41929-024-01114-7
日期:——
anti-inflammatory medication molecules, as well as preparation of 13C-labelled formyl coenzyme A. Furthermore, we establish a one-pot S-formylation-olefination process for the synthesis of vinylsulfides under completely metal-free conditions in the presence of CO2. Overall, this study provides a platform to transform thiols and CO2 into value-added products.
硫醇的S-甲酰化是通过甲酸脱氢酶催化的酶促过程实现的,该酶将CO 2固定在底物上,这在调节活生物体的重要生物途径中起着至关重要的作用。通过化学方法实现这种反应性也可能是有利的,这将允许将CO 2固定在多种硫醇上。在这里,我们演示了在无金属条件下使用介离子N-杂环烯烃从CO 2制备S-甲酰硫醇的化学过程。该催化反应用于多样化从天然萜类化合物、脂肪醇、抗氧化剂和市售镇痛抗炎药物分子中获得的多种生物活性硫醇,以及13 C 标记的甲酰辅酶 A 的制备。此外,我们建立了在CO 2存在下完全无金属条件下合成乙烯基硫醚的一锅S-甲酰化-烯化工艺。总的来说,这项研究提供了一个将硫醇和CO 2转化为增值产品的平台。