A Series of Ligands Displaying a Remarkable Agonistic−Antagonistic Profile at the Adenosine A1 Receptor
摘要:
Adenosine receptor agonists are usually variations of the natural ligand, adenosine. The ribose moiety in the ligand has previously been shown to be of great importance for the agonistic effects of the compound. In this paper, we present a series of nonadenosine ligands selective for the adenosine A(1) receptor with an extraordinary pharmacological profile. 2-Amino-4-benzo[1,3]dioxol-5-yl-6-(2-hydroxyethylsulfanyl)pyridine-3,5-dicarbonitrile (70, LUF 5853) shows full agonistic behavior comparable with the reference compound CPA, while also displaying comparable receptor binding affinity (K-i = 11 nM). In contrast, compound 58 (2-amino-4-(3-trifluoromethylphenyl)-6-(2-hydroxyethylsulfanyl)pyridine-3,5-dicarbonitrile, LUF 5948) has a binding affinity of 14 nM and acts as an inverse agonist. Also present within this same series are compounds that show neutral antagonism of the adenosine A(1) receptor, for example compound 65 (2-amino-4-(4-difluoromethoxyphenyl)-6-(2-hydroxyethylsulfanyl)pyridine-3,5-dicarbonitrile, LUF 5826).
Graphene oxide–TiO<sub>2</sub> composite: an efficient heterogeneous catalyst for the green synthesis of pyrazoles and pyridines
作者:Shweta Kumari、Amiya Shekhar、Devendra D. Pathak
DOI:10.1039/c5nj03380b
日期:——
GO–TiO2 has been found to be a highly efficient and recyclable heterogeneous catalyst for the synthesis of pyrazoles and pyridines in aqueous medium at room temperature.
Ultrasound-promoted synthesis of 2-amino-6-(arylthio)-4-arylpyridine-3,5-dicarbonitriles using ZrOCl2·8H2O/NaNH2 as the catalyst in the ionic liquid [bmim]BF4 at room temperature
作者:Mohammad Reza Poor Heravi、Farnazalsadat Fakhr
DOI:10.1016/j.tetlet.2011.10.031
日期:2011.12
We herein present an efficient and environmentally benign protocol for the synthesis of 2-amino-6-(arylthio)-4-arylpyridine-3,5-dicarbonitrile derivatives via the three-component condensation of a variety of aldehydes, arylthiols, and malononitrile catalyzed by ZrOCl2 center dot 8H(2)O/NaNH2 (20 mol %) in the ionic liquid [bmim]BF4 under ultrasound irradiation at room temperature. (C) 2011 Elsevier Ltd. All rights reserved.
[DE] SUBSTITUIERTE 2 -AMINO - 3 - CYANOPYRIDINE ALS INHIBITOREN DES NATRIUM CALCIUM AUSTAUSCHES UND IHRE VERWENDUNG BEI KARDIOVASKULÄREN ERKRANKUNGEN<br/>[EN] SUBSTITUTED 2-AMINO-3-CYANOPYRIDINES AS INHIBITORS OF SODIUM-CALCIUM EXCHANGE AND USE THEREOF FOR CARDIOVASCULAR DISEASES<br/>[FR] 2-AMINO-3-CYANOPYRIDINES SUBSTITUÉES UTILISÉES COMME INHIBITEURS DE L'ÉCHANGE SODIUM-CALCIUM ET LEURS UTILISATIONS DANS LE CAS DE MALADIES CARDIOVASCULAIRES
申请人:BAYER IP GMBH
公开号:WO2013144191A1
公开(公告)日:2013-10-03
Die vorliegende Anmeldung betrifft neue substituierte 2-Amino-3-cyanopyridine, Verfahren zu ihrer Herstellung, ihre Verwendung zur Behandlung und/oder Prävention von Krankheiten sowie ihre Verwendung zur Herstellung von Arzneimitteln zur Behandlung und/oder Prävention von Krankheiten, insbesondere zur Behandlung und/oder Prävention kardiovaskulärer Erkrankungen.