Design, synthesis and biological evaluation of benzo[1.3.2]dithiazolium ylide 1,1-dioxide derivatives as potential dual cyclooxygenase-2/5-lipoxygenase inhibitors
摘要:
3-(4-Bromophenyl)-6-nitrobenzo[1.3.2]dithiazolium ylide 1,1-dioxide (5) was discovered as a new prototype for dual inhibitors of cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX). Thus, the structure-activity relationships of benzo[1.3.2]dithiazolium ylide 1,1-dioxide skeleton were carried out. The 6-NO2 group played an essential role in the inhibitory activity. In addition, moderate-sized lipophilic substituents at the para-position of the 3-aryl moiety were required for dual COX-2/5-LOX inhibitory activity. Among the identified potent dual inhibitors, 3-(4-tbutylphenyl) derivative 30c (IC50 values of 0.27 mu M and 0.30 mu M against COX-2 and 5-LOX, respectively) and 3-(4-biphenyl) derivative 30f (IC50 values of 0.50 mu M and 0.15 mu M against COX-2 and 5-LOX, respectively) were the most potent dual COX-2/5-LOX inhibitors. Intraperitoneal administration of 30c at 100 mg/kg demonstrated potent acute anti-inflammatory activity. As a result, benzo[1.3.2]dithiazolium ylide 1,1-dioxide represented a novel scaffold for the exploitation in developing dual COX-2/5-LOX inhibitors. (C) 2011 Elsevier Ltd. All rights reserved.
NOVEL COMPOUND HAVING MULTIMER STRUCTURE OF XANTHENE DERIVATIVE, COLORING COMPOSITION, INK FOR INKJET RECORDING, METHOD OF INKJET RECORDING, COLOR FILTER, AND COLOR TONER
申请人:FUJIFILM CORPORATION
公开号:US20140176653A1
公开(公告)日:2014-06-26
There is provided a compound represented by formula (1):
in formula (1), L represents a divalent to tetravalent linking group; D represents a residue obtained by removing 1 to 5 hydrogen atoms from a compound represented by formula (2); m represents an integer of 1 to 10, however, each L may be the same with or different from every other L; n represents an integer of 2 to 10, however, each D may be the same with or different from every other D; and in formula (2), each of R
4
to R
24
independently represents a hydrogen atom or a substituent, provided that formula (2) has at least one or more ionic hydrophilic groups.
[EN] NOVEL BIS-(TRIAZINYLAMINO)-STILBENE DERIVATIVES<br/>[FR] NOUVEAUX DÉRIVÉS DE BIS-(TRIAZINYLAMINO)-STILBÈNE
申请人:CLARIANT INT LTD
公开号:WO2012146353A1
公开(公告)日:2012-11-01
The instant invention relates to novel water soluble bis-(triazinylamino)-stilbene optical brightening agents, a process for their preparation and their use for whitening natural and synthetic materials.