Design, synthesis and biological activity of YM-60828 derivatives: potent and orally-Bioavailable factor Xa inhibitors based on naphthoanilide and naphthalensulfonanilide templates
摘要:
Factor Xa (FXa) is a serine protease which plays a pivotal role in the coagulation cascade. The inhibition of FXa has received great interest as a potential target for the development of new antithrombotic drug. Herein we describe a series of novel 7-arnidino-2-naphthoanilide and 7-amidino-2-naphthalensulfonanilide derivatives which are potent FXa inhibitors. These scaffolds are rigid and are allowed to adopt an L-shape conformation which was estimated as the active conformation based on a docking study of YM-60828 with FXa. Optimization of the side chain at the central aniline nitrogen of 7-amidino-2-naphthoanilide has led to several potent and orally active FXa inhibitors. 5h (YM-169964), the best compound of these series, showed potent FXa inhibitory activity (IC50 = 3.9 nM) and effectively prolonged prothrombin time by 9.6-fold ex vivo Lit an oral dose of 3 mg/kg in squirrel monkeys. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis and biological evaluation of 4(5)-(6-methylpyridin-2-yl)imidazoles and -pyrazoles as transforming growth factor-β type 1 receptor kinase inhibitors
作者:Dae-Kee Kim、Yeon-Im Lee、Yeon Woo Lee、Purushottam M. Dewang、Yhun Yhong Sheen、Yeo Woon Kim、Hyun-Ju Park、Jakyung Yoo、Ho Soon Lee、Yong-Kook Kim
DOI:10.1016/j.bmc.2010.04.071
日期:2010.6.15
A series of 4(5)-(6-methylpyridin-2-yl)imidazoles 16–19 and -pyrazoles 22–29, 33, and 34 have been synthesized and evaluated for their ALK5 inhibitory activity in an enzyme assay and in cell-based luciferase reporter assays. The 6-quinolinyl imidazole analogs 16 and 18 inhibited ALK5 phosphorylation with IC50 values of 0.026 and 0.034 μM, respectively. In a luciferase reporter assay using HaCaT cells
To identify new highly selective EP4-agonists, further modification of the 16-phenyl moiety of 1 was continued. 16-(3-methoxymethyl)phenyl derivatives 13-(6q) and 16-(3-ethoxymethyl)phenyl derivatives 13-(7e) showed more selectivity and potent agonist activity than 1. 16-(3-methyl-4-hydroxy)phenyl derivative 18-(14e) demonstrated excellent subtype selectivity, while both its receptor affinity and agonist
2-pyridyl substituted imidazoles as therapeutic ALK5 and/or ALK4 inhibitors
申请人:EWHA University - Industry Collaboration Foundation
公开号:US08080568B1
公开(公告)日:2011-12-20
This invention relates to 2-pyridyl substituted imidazoles which are inhibitors of the transforming growth factor-β (TGF-β) type I receptor (ALK5) and/or the activin type I receptor (ALK4), methods for their preparation, and their use in medicine, specifically in the treatment and prevention of a disease state mediated by these receptors.
[EN] INHIBITORS OF INDUCIBLE FORM OF 6-PHOSPHOFRUCTOSE-2-KINASE<br/>[FR] INHIBITEURS DE LA FORME INDUCTIBLE DE LA 6-PHOSPHOFRUCTOSE-2-KINASE
申请人:EXELIXIS INC
公开号:WO2012149528A1
公开(公告)日:2012-11-01
The invention is directed to inhibitors of inducible form of 6-phosphofructose-2-kinase of formula I, as well as to pharmaceutically acceptable salts of formula I, and pharmaceutical compositions comprising a compound of formula I. The compounds can be used to treat cancer.
studies. Importantly, we obtained the first crystal structure of human NNMT in complex with a small-molecule inhibitor. The structure of the NNMT–6 complex has unambiguously demonstrated that 6 occupied both substrate and cofactor bindingsites. The findings paved the way for developing more potent and selective NNMT inhibitors in the future.