4-Nitro-2-[(4'-methoxy)-phenoxy]-methanesulfonanilide derivatives and their pharmaceutical use
申请人:Sun Zhuangrong
公开号:US20070060544A1
公开(公告)日:2007-03-15
4-nitro-2-[4′-methoxy)-phenoxy]-methane-sulfonanilide or the pharmaceutical acceptable salts or solvates or hydrates thereof are provided. Also provided is their mixture with povidone, phospholipids or cyclodextrin, as well as their pharmaceutical uses, particularly the use as a non-steroidal anti-inflammatory, analgetic agent.
Isomeric methoxy analogs of nimesulide for development of brain cyclooxygense-2 (COX-2)-targeted imaging agents: Synthesis, in vitro COX-2-inhibitory potency, and cellular transport properties
Nimesulide analogs bearing a methoxy substituent either at the ortho-, meta- or para-position on the phenyl ring, were designed, synthesized, and evaluated for potential as radioligands for brain cyclooxygenase-2 (COX-2) imaging. The synthesis of nimesulide and regioisomeric methoxy analogs was based on the copper-mediated arylation of phenolic derivatives for the construction of diaryl ethers. These isomeric methoxy analogs displayed lipophilicity similar to that of nimesulide itself, as evidenced by their HPLC logP(7.4) values. In vitro inhibition studies using a colorimetric COX (ovine) inhibitor-screening assay demonstrated that the para-methoxy substituted analog retains the inhibition ability and selectivity observed for parent nimesulide toward COX-2 enzyme, whereas the meta- and ortho-methoxy substituents detrimentally affected COX-2-inhibition activity, which was further supported by molecular docking studies. Bidirectional transport cellular studies using Caco-2 cell culture model in the presence of the P-glycoprotein (P-gp) inhibitor, verapamil, showed that P-gp did not have a significant effect on the efflux of the para-methoxy substituted analog. Further investigations using the radiolabeled form of the para-methoxy substituted analog is warranted for in vivo characterization. (C) 2015 Elsevier Ltd. All rights reserved.