Structure-Reactivity Relationships in the Hydrogenation of Carbon Dioxide with Ruthenium Complexes Bearing Pyridinylazolato Ligands
作者:Keven Muller、Yu Sun、Andreas Heimermann、Fabian Menges、Gereon Niedner-Schatteburg、Christoph van Wüllen、Werner R. Thiel
DOI:10.1002/chem.201204199
日期:2013.6.10
bond lengths of the rutheniumcomplexes. Furthermore, the electronic nature of the azolate moiety modulates the catalytic activity of the rutheniumcomplexes in the hydrogenation of carbondioxide under supercritical conditions and in the transfer hydrogenation of acetophenone. DFT calculations were performed to shed light on the mechanism of the hydrogenation of carbondioxide and to clarify the impact
New palladium(<scp>ii</scp>) complexes with 3-(2-pyridyl)-5-alkyl-1,2,4-triazole ligands as recyclable C–C coupling catalysts
作者:Borys V. Zakharchenko、Dmytro M. Khomenko、Roman O. Doroshchuk、Ilona V. Raspertova、Viktoriia S. Starova、Volodymyr V. Trachevsky、Sergiu Shova、Olga V. Severynovska、Luísa M. D. R. S. Martins、Armando J. L. Pombeiro、Vladimir B. Arion、Rostyslav D. Lampeka
DOI:10.1039/c9nj02278c
日期:——
series of palladium(II) complexes with 3-(2-pyridyl)-5R-1,2,4-triazoles Pd(LR)2 (R = ethyl (4a), n-propyl (4b), i-propyl (4c) and t-butyl (4d)) have been synthesised and characterised by NMR, IR, UV-vis spectroscopy, ESI and MALDI-TOF mass spectrometry. Single-crystal X-ray diffraction study of 4a–d revealed a square-planar coordination geometry, in which the N^N chelating monoanionic ligands adopt a
The present invention is directed to benzoquinazilinone compounds of formula (I) which are M1 receptor positive allosteric modulators and that are useful in the treatment of diseases in which the M1 receptor is involved, such as Alzheimer's disease, schizophrenia, pain or sleep disorders. The invention is also directed to pharmaceutical compositions comprising the compounds, and to the use of the compounds and compositions in the treatment of diseases mediated by the M1 receptor.
Solvent- and functional-group-assisted tautomerism of 3-alkyl substituted 5-(2-pyridyl)-1,2,4-triazoles in DMSO–water
作者:Jesús García-López、Dmytro M. Khomenko、Borys V. Zakharchenko、Roman O. Doroshchuk、Viktoriia S. Starova、María José Iglesias、Rostyslav D. Lampeka、Fernando López-Ortiz
DOI:10.1039/d3ob01651j
日期:——
determined by EXSY experiments, which also supported the involvement of water in the tautomerisation. Substituenteffects on the 15Nchemicalshifts are relatively small. The DFT study of the tautomerism in DMSO–water showed that both A/B and B/C interconversions are assisted by the pyridine substituent and catalysed by solvent molecules. The NH-A/NH-B tautomerisation takes place via a relayed quadruple
通过1 H、 13 C 和15 N NMR 光谱研究了一系列 5-烷基取代的 3-(2-吡啶基)-1,2,4-三唑在含 DMSO -d 6的水中的互变异构现象。互变异构平衡中三种可能的区域异构体的群体( A [3-烷基-5-(2-吡啶基)-1 H ]、 B [5-烷基-3-(2-吡啶基)-1 H ] 和C [测定了5-烷基-3-(2-吡啶基) -4H ])。异构体A (17-40%) 和B (54-79%) 是主要成分,其比例对取代模式不敏感,但未取代和甲氧基甲基取代的衍生物除外。异构体C (3–5%) 首次通过 NMR 光谱进行了全面表征。通过EXSY实验测定了互变异构化的活化能(14.74–16.78 kcal mol -1 ),这也支持了水参与互变异构化。取代基对15 N 化学位移的影响相对较小。 DMSO-水中互变异构的 DFT 研究表明, A / B和B / C互变均受到吡啶取代基的辅助和溶剂分子的催化。
PYRIDINONE AND PYRIMIDINONE DERIVATIVES AS FACTOR XIA INHIBITORS
申请人:ONO Pharmaceutical Co., Ltd.
公开号:EP3290413A1
公开(公告)日:2018-03-07
The present invention provides compounds of the general formula (I), their salts and N-oxides, and solvates and prodrugs thereof (wherein the characters are as defined in the description). The compounds of the general formula (I) are inhibitors of Factor XIa, so that they are useful in the prevention of and/or therapy for thromboembolic diseases.