[EN] IMIDAZOPYRIDAZINECARBONITRILES USEFUL AS KINASE INHIBITORS [FR] IMIDAZOPYRIDAZINECARBONITRILES POUVANT ÊTRE EMPLOYÉS EN TANT QU'INHIBITEURS DE KINASE
Quinazolinone, triazolinone and pyrimidinone angiotensin II antagonists
申请人:Merck & Co., Inc.
公开号:US05264439A1
公开(公告)日:1993-11-23
Substituted heterocycles attached through a methylene bridge to novel substituted phenyl derivatives of the Formula I are useful as angiotensin II antagonists. ##STR1##
通过一个亚甲基桥连接到新的取代苯基衍生物的取代杂环对式I的化合物可作为血管紧张素II拮抗剂。
Quinazolinones substituted with phenoxyphenylacetic acid derivatives
申请人:Merck & Co., Inc.
公开号:US05401745A1
公开(公告)日:1995-03-28
Phenoxyphenylacetic acids and derivatives of general structural formula I ##STR1## have endothelin antagonist activity and are therefore useful in treating cardiovascular disorders, such as hypertension, postischemic renal failure, vasospasm, cerebal and cardiac ischemia, myocardial infarction, inflammatory diseases, Raynaud's disease, and endotoxic shock, and asthma.
Novel disubstituted 6-aminoquinazolinones of the Formula ##STR1## are useful as angiotensin-II receptor (subtype 2) antagonists (AT.sub.2 antagonists) alone or in combination with heparin, and can act to suppress the vascular stenosis which commonly occurs during the development of atherosclerosis and the restenosis following arterial angioplasty, stent placement, bypass surgery, heart transplantation or endarterectomy.
Novel disubstituted 6-aminoquinazolinones of the Formula (I), are useful as angiotensin II antagonists: ##STR1##
新型二取代6-氨基喹唑啉酮的化合物(I)可用作血管紧张素II拮抗剂:##STR1##
Gold supported on titania for specific monohydrogenation of dinitroaromatics in the liquid phase
作者:Shuang-Shuang Liu、Xiang Liu、Lei Yu、Yong-Mei Liu、He-Yong He、Yong Cao
DOI:10.1039/c4gc00869c
日期:——
Liquid-phase selective monohydrogenation of various substituted dinitroaromatics to the corresponding valuable nitroanilines was investigated on gold-based catalysts. Special attention was paid to the effect of Au particle size on this monoreduction reaction. Interestingly, TiO2 supported gold catalysts containing a relatively larger mean Au particle size (>5 nm) showed far superior chemoselectivity for specific mono-hydrogenation of dinitroaromatics, with the highest performance attainable for the catalyst bearing Au particles of ca. 7.5 nm. Results in the intermolecular competitive hydrogenation showed that the intrinsic higher accumulation rates of the desired nitroanilines associated with the catalyst possessing larger Au particles were responsible for the high chemoselectivity observed.