We prepared polycatenar 1H-imidazole amphiphiles having a structure in which a 1H-imidazole head was connected through a benzene ring to a pheny group having two or three oligo(ethylene glycol) chains and studied their supramolecular assembly by fluorescence spectroscopy, transmission electron microscopy (TEM) and atomic force microscopy (AFM). When the aqueous solutions of the amphiphiles ($5\times}10^-5}M\sim}10^-3}M$) were deposited onto a carbon-coated copper grid and dried, twisted structures with diameters of ~200-300 nm were imaged by TEM and AFM. We presume that the structures comprised a chain of the amphiphile dimers formed via successive hydrogen bonding between the 1H of the imidazole group and 3N of the neighboring one. In a solution of pH 4, entangled fibers with diameters of several nanometers were observed by TEM. In a pH 10 solution, film-like aggregates formed exclusively. The 1H-imidazole amphiphiles hydrolyzed tetraethoxysilane to induce gelation to form fibrous and spherical silica structures at neutral pH in aqueous solutions. No silica was formed when imidazole was used instead of the amphiphiles, suggesting that the selfassembled aggregates of the amphiphiles were responsible for the gelation.
Our previous work identified a promising isonicotinamide based xanthineoxidase (XO) inhibitor, N-(3-cyano-4-((2-cyanobenzyl)oxy)phenyl)isonicotinamide (1), and concluded that amide is an effective linker in exploring the XO inhibitor chemical space that is completely different from the five-membered ring framework of febuxostat and topiroxostat. Indole, an endogenous bioactive substance and a popular
我们之前的工作确定了一种有前景的基于异烟酰胺的黄嘌呤氧化酶 (XO) 抑制剂N -(3-cyano-4-((2-cyanobenzyl)oxy)phenyl)isoicotinamide ( 1 ),并得出结论认为酰胺是探索完全不同于非布司他和托吡司他的五元环骨架的XO抑制剂化学空间。吲哚是一种内源性生物活性物质和流行的药物构建片段,参与了当前努力的结构优化活动。在安装了一些官能团后,生成了N -(1-alkyl-3-cyano-1 H -indol-5-yl) 并用于修复1的 3'-氰基之间缺失的 H 键相互作用和 XO 的 Asn768 残基通过缩短它们的距离。在此背景下,合理设计和合成了 8 种杂环芳香酰胺化学型,以研究酰胺基 XO 抑制剂的构效关系 (SAR)。优化后的化合物a6 (IC 50 = 0.018 μM) 的效力比初始化合物1 (IC 50 = 0.31 μM) 提高了
[EN] INDAZOLYL THIADIAZOLAMINES AND RELATED COMPOUNDS FOR INHIBITION OF RHO-ASSOCIATED PROTEIN KINASE AND THE TREATMENT OF DISEASE<br/>[FR] THIADIAZOLAMINES INDAZOLYLE ET COMPOSÉS APPARENTÉS POUR L'INHIBITION DE PROTÉINE KINASE ASSOCIÉE À RHO ET LE TRAITEMENT DE MALADIES
申请人:LYCERA CORP
公开号:WO2016138335A1
公开(公告)日:2016-09-01
The invention provides indazolyl thiadiazolamines and related compounds, pharmaceutical compositions, methods of inhibiting Rho-associated protein kinase, and methods of treating inflammatory disorders, immune disorders, fibrotic disorders, and other medical disorders using such compounds. An exemplary indazolyl thiadiazolamine compound is an N-(5-[5-[(1H4ndazol-5-yl)amino]-1,3,4-thiadiazol-2-yl]pyridin-3-yl)acetamide compound.
Nonsteroidal cardiotonics. 2. The inotropic activity of linear, tricyclic 5-6-5 fused heterocycles
作者:Wolfgang Von der Saal、Jens Peter Hoelck、Wolfgang Kampe、Alfred Mertens、Bernd Mueller-Beckmann
DOI:10.1021/jm00127a015
日期:1989.7
We previously reported the structure-activity relationships (SAR) of adibendan (1), a potent and long-acting cardiotonic. This paper describes the synthesis of a novel series of linear, tricyclic fused heterocycles of the 5-6-5 type. The compounds were evaluated for positive inotropic activity in anesthetized rats, cats, and dogs. Changes in left ventricular dP/dt were measured as an index of cardiac
[EN] LIPIDIC COMPOUNDS COMPRISING AT LEAST ONE TERMINAL RADICAL OF FORMULA -NH-CX-A OR -NH-CX-NH-A, COMPOSITIONS CONTAINING THEM AND USES THEREOF<br/>[FR] COMPOSÉS LIPIDIQUES COMPRENANT AU MOINS UN RADICAL TERMINAL DE FORMULE -NH-CX-A OU -NH-CX-NH-A, COMPOSITIONS LES CONTENANT ET LEURS UTILISATIONS
申请人:SANOFI PASTEUR
公开号:WO2022013443A1
公开(公告)日:2022-01-20
The disclosure relates to novel lipidic compounds, lipid nanoparticles (LNPs) containing thereof, and the use of the lipidic compounds or the LNPs for the delivery of nucleic acid. The lipidic compounds as disclosed herein comprise at least one terminal radical of formula (I): *-NH-CX-(NH)n-A (I) wherein: - *- represents a single bond linking said radical of formula (I), directly or not, to to one C10 to C55 lipophilic or hydrophobic tail-group; - n is 0 or 1; - X is an oxygen or sulfur atom, and - A represents an optionally substituted 5- or 6-membered unsaturated heterocyclic radical or 5- or 6-membered heteroaromatic ring radical, both containing at least one nitrogen atom; or one of the pharmaceutically acceptable salts of said radical of formula (I); and with said compound that is in all the possible racemic, enantiomeric and diastereoisomeric isomer forms.