Synthesis and characterization of binary and ternary oxovanadium complexes of<i>N</i>,<i>N</i>′-(2-pyridyl)thiourea and curcumin: Catalytic oxidation potential, antibacterial, antimicrobial, antioxidant and DNA interaction studies
作者:Mohamed Shaker S. Adam、Magdy M. Youssef、Maha F. Aboelghar、Aly M. Hafez、Usama El-Ayaan
DOI:10.1002/aoc.3650
日期:2017.7
catalytic potential for the conversion of 1‐octene with low chemoselectivity to the epoxy product. The VO complexes exhibit good antibacterial and antimicrobial activities. The antioxidant activity of the VO complexes and their ligands was investigated. The VO complexes show high DNA affinity and DNA cleavage ability.
合成了乙酰丙酮酸,姜黄素和N,N'-双(2-吡啶基)硫脲的两个二元和两个三元单氧钒(IV)配合物。使用元素分析,红外和紫外可见光谱以及磁和电导率测量对它们进行了表征。形成常数K f由分光光度法测量确定。研究了VO络合物对H 2 O 2水溶液氧化1-辛烯的催化潜力在乙腈中。它们显示出高催化潜力,可将低化学选择性的1-辛烯转化为环氧产物。VO复合物表现出良好的抗菌和抗菌活性。研究了VO配合物及其配体的抗氧化活性。VO复合物显示出高的DNA亲和力和DNA切割能力。
[EN] TRIAZOLE PYRIDYL COMPOUNDS AS AGONISTS OF THE APJ RECEPTOR<br/>[FR] COMPOSÉS DE TRIAZOLE PYRIDYLE EN TANT QU'AGONISTES DU RÉCEPTEUR APJ
申请人:AMGEN INC
公开号:WO2018093580A1
公开(公告)日:2018-05-24
Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and may have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the structures where the definitions of the variables are provided herein.
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,
Homoleptic cis- and trans-palladium(II) bis(guanidinato) complexes derived from N-aryl-N′,N″-di(pyridin-2-yl)- and N-aryl-N′,N″-bis(6-methylpyridin-2-yl)guanidines: Catalysts for Heck-Mizoroki coupling reactions
作者:Vishwesh Mishra、Jisha Mary Thomas、Sivasankar Chinnappan、Natesan Thirupathi
DOI:10.1016/j.jorganchem.2019.04.009
日期:2019.8
in 75%–81% yields. Reactions of Pd(OAc)2 with guanidines 2–7 carried out separately in toluene at 60 °C for 3 h afforded 8–13 respectively in 69%–80% yields. Compounds 1–13 were characterized by elemental analyses, HR-MS, IR and NMR (1H and 13C) spectroscopy. Molecular structures of guanidines 1, 4, 5 and 6 and those of 8–13 were determined by single crystal X-ray diffraction. The Pd(II) atom in 8–10
1-(Methyldithiocarbonyl)imidazole: a Useful Thiocarbonyl Transfer Reagent for Synthesis of Substituted Thioureas
作者:Pramod K. Mohanta、Sanchita Dhar、S.K. Samal、H. Ila、H. Junjappa
DOI:10.1016/s0040-4020(99)01026-1
日期:2000.1
1-(Methyldithiocarbonyl)imidazole 1 and its N-methyl quaternary salt 2 have been shown to be efficient methyldithiocarbonyl and thiocarbonyl transfer reagents for the synthesis of dithiocarbamates, symmetrical and unsymmetrical mono-, di- and tri-substituted thioureas in high yields under mild and simple non-hazardous reaction conditions.