2-Aminothiazoles as Therapeutic Leads for Prion Diseases
作者:Alejandra Gallardo-Godoy、Joel Gever、Kimberly L. Fife、B. Michael Silber、Stanley B. Prusiner、Adam R. Renslo
DOI:10.1021/jm101250y
日期:2011.2.24
2-Aminothiazoles are a new class of small molecules with antiprion activity in prion-infected neuroblastoma cell lines ( J. Virol. 2010, 84, 3408). We report here structure−activity studies undertaken to improve the potency and physiochemical properties of 2-aminothiazoles, with a particular emphasis on achieving and sustaining high drug concentrations in the brain. The results of this effort include
Molecular conformation ofN,N′-diarylthioureas: An assessment by1H NMR and infrared spectroscopy
作者:L. V. Sudha、S. Manogaran、D. N. Sathyanarayana
DOI:10.1002/mrc.1260230802
日期:1985.8
Several N,N′‐dipyridyl‐ and N‐phenyl‐N′‐pyridyl‐thioureas were examined in different solvents at various temperatures by 1H NMR in order to study their conformational properties. The influence of concentration and the methyl substituent in the pyridine ring on the chemical shifts of the NH and pyridine groups was investigated. The observed chemical shifts are analysed in terms of the conformational properties
通过 1H NMR 在不同溶剂中在不同温度下检测了几种 N,N'-二吡啶基和 N-苯基-N'-吡啶基硫脲,以研究它们的构象特性。研究了浓度和吡啶环中的甲基取代基对NH和吡啶基团化学位移的影响。根据分子的构象特性分析观察到的化学位移。已经确定了关于 CN 键的内部旋转的自由能障碍。已测量红外光谱以补充核磁共振研究。分子内氢键在吡啶硫脲的优选构象中起主要作用。数据进一步揭示了对称 N 中发生的有趣的动态交换现象,
Synthesis, structural and chemosensitivity studies of arene d
<sup>6</sup>
metal complexes having N‐phenyl‐N´‐(pyridyl/pyrimidyl)thiourea derivatives
作者:Sanjay Adhikari、Omar Hussain、Roger M. Phillips、Werner Kaminsky、Mohan Rao Kollipara
DOI:10.1002/aoc.4362
日期:2018.6
salts. X‐ray crystallographic studies of the complexes revealed the coordination of the ligands to the metal in a bidentate chelating N,S‐ manner. Further the cytotoxicitystudies of the thiourea derivatives and its complexes evaluated against HCT‐116 (human colorectal cancer), MIA‐PaCa‐2 (human pancreatic cancer) and ARPE‐19 (non‐cancer retinal epithelium) cancercelllines showed that the thiourea ligands
2-aminopyridine/pyrazine/pyrimidine with substituted isothiocyanates followed by base catalyzed ringclosure with 1,2-dibromoethane to obtain thiazolidine-2-imines with broad substrate scope and high functional group tolerance. The synthetic strategy merges well with the thiourea formation followed by base catalyzed ringclosure reaction for the thiazolidine-2-imine synthesis in a more modular and straightforward
作者:V. A. Mamedov、N. A. Zhukova、T. N. Beschastnova、Ya. A. Levin、A. T. Gubaidullin、I. A. Litvinov
DOI:10.1007/s11172-007-0365-9
日期:2007.11
The condensation of methyl phenylchloropyruvate with 1-phenyl-3-(2-pyridyl)thiourea and its 3-and 4-picolyl homologs affords the corresponding 4-hydroxythiazolidines, which react with o-phenylenediamine to give one of two possible thiazolo[3,4-a]quinoxalines containing the pyridyl-or picolylimine substituents at position 1. 3a-Hydroxy-3-phenylimino-1-(2-pyridyl)thiazolo[3,4-a]quinoxalin-4-(3H,5H)-one