Synthesis and biological evaluation of 1-substituted-3(5)-(6-methylpyridin-2-yl)-4-(quinoxalin-6-yl)pyrazoles as transforming growth factor-β type 1 receptor kinase inhibitors
摘要:
A series of 1-substituted-3(5)-(6-methylpyridin-2-yl)-4-(quinoxalin-6-yl)pyrazoles 14a-d, 15a-d, 17a, 17b, 18a-d, 19a, and 19b has been synthesized and evaluated for their ALK5 inhibitory activity in an enzyme assay and in a cell-based luciferase reporter assay. The 2-[3-(6-methylpyridin-2-yl)-4-(quinoxalin-6-yl)-1H-pyrazol-1-yl]-N-phenylethanethioamide (18a) inhibited ALK5 phosphorylation with an IC50 value of 0.013 mu M and showed 80% inhibition at 0.1 mu M in a luciferase reporter assay using HaCaT cells permanently transfected with p3TP-luc reporter construct. (C) 2011 Elsevier Masson SAS. All rights reserved.
A new family of quinoline and quinoxaline analogues of combretastatins
摘要:
The 3-hydroxy-4-methoxyphenyl ring of combretastatin A-4 can be replaced by a 2-naphthyl moiety without significant loss of cytotoxicity and inhibition of tubulin polymerization potency. In this paper we show that the 6- or 7-quinolyl systems can in turn replace both cyclic moieties, keeping in the first case most of the potency as cytotoxic agent and in the second case as inhibitor of tubulin polymerization, related to the activities displayed by model compounds. (C) 2004 Elsevier Ltd. All rights reserved.
Antibacterially active and animal growth-regulating novel .beta.-lactam compounds of the formula ##STR1## in which R.sup.1 represents an optionally substituted radical of the formula ##STR2## Z represents oxygen, sulphur or --N--R.sup.13, and A represents the group ##STR3##
Beta-Lactam-Antibiotika, Verfahren zur Herstellung und ihre Verwendung als Arzneimittel
申请人:BAYER AG
公开号:EP0197294A2
公开(公告)日:1986-10-15
Die Erfindung betrifft β-Lactamantibiotika der allgemeinen Formel (I)
in welcher X, R', R2, R3 und R4 die in der Beschreibung angegebene Bedeutung haben, Verfahren zu ihrer Herstellung sowie ihre Verwendung in Arzneimitteln, insbesondere als oral wirksame Antibiotika.