Synthesis and Biological Evaluation of 2-Phenylpyran-4-ones: A New Class of Orally Active Cyclooxygenase-2 Inhibitors
摘要:
A series of 2-phenylpyran-4-ones were prepared and evaluated for their ability to inhibit cyclooxygenase-2 (COX-2). Extensive structure-activity relationship work was carried out within this series, and a number of potent and selective COX-2 inhibitors were identified. Compounds having a p-methylsulfone group at the 2-phenyl ring showed the best COX-2 inhibitory activity. The introduction of a substituted phenoxy ring at position 3 enhanced both the in vitro and in vivo activity within the series. A selected group of 3-phenoxypyran-4-ones exhibited excellent activity in an experimental model of pyresis. The in vivo antiinflammatory activity of these compounds was confirmed with the evaluation of their antiarthritic and analgesic effectiveness. Moreover, their pharmacokinetic profile in rats is compatible with a once a day administration by oral route in humans. Within this novel series, compounds 21, 31, 34, and 35 have been selected for further preclinical. and clinical evaluation.
[EN] METHOD FOR PREPARING 4-(3-(3-FLUOROPHENYL)-5,5-DIMETHYL-4-OXO-4,5-DIHYDROFURAN-2-YL)BENZENESULFONAMIDE [FR] PROCÉDÉ DE PRÉPARATION DE 4-(3-(3-FLUOROPHÉNYL)-5,5-DIMÉTHYL-4-OXO-4,5-DIHYDROFURAN-2-YL)BENZÈNESULFONAMIDE [KO] 4-(3-(3-플루오로페닐)-5,5-디메틸-4-옥소-4,5-디하이드로푸란-2-일)벤젠설폰아마이드의 제조 방법
4,5-diaryl-3(2H)-furanone derivatives as cyclooxygenase-2 inhibitors
申请人:Pacific Corporation
公开号:US06492416B1
公开(公告)日:2002-12-10
The present invention provides a novel class of 4,5-diaryl-3(2H)-furanone derivatives, which inhibit strongly and selectively COX-2 over COX-1. They are useful to treat inflammation, inflammation-associated disorders, and COX-2 mediated diseases.
Benzylic Aroylation of Toluenes Mediated by a LiN(SiMe<sub>3</sub>)<sub>2</sub>/Cs<sup>+</sup> System
作者:Yuanyun Gu、Zhen Zhang、Yan-En Wang、Ziteng Dai、Yaqi Yuan、Dan Xiong、Jie Li、Patrick J. Walsh、Jianyou Mao
DOI:10.1021/acs.joc.1c02446
日期:2022.1.7
Chemoselective deprotonative functionalization of benzylic C–H bonds is challenging, because the arene ring contains multiple aromatic C(sp2)–H bonds, which can be competitively deprotonated and lead to selectivity issues. Recently it was found that bimetallic [MN(SiMe3)2 M = Li, Na]/Cs+ combinations exhibit excellent benzylic selectivity. Herein, is reported the first deprotonative addition of toluenes
[EN] METHOD FOR PREPARING 4-(3-(3-FLUOROPHENYL)-5,5-DIMETHYL-4-OXO-4,5-DIHYDROFURAN-2-YL)BENZENESULFONAMIDE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 4-(3-(3-FLUOROPHÉNYL)-5,5-DIMÉTHYL-4-OXO-4,5-DIHYDROFURAN-2-YL)BENZÈNESULFONAMIDE<br/>[KO] 4-(3-(3-플루오로페닐)-5,5-디메틸-4-옥소-4,5-디하이드로푸란-2-일)벤젠설폰아마이드의 제조 방법
申请人:HWAIL PHARM CO LTD
公开号:WO2015080435A1
公开(公告)日:2015-06-04
본 발명은 4-(3-(3-플루오로페닐)-5,5-디메틸-4-옥소-4,5-디하이드로 푸란-2-일)벤젠설폰아마이드를 제조하는 방법에 관한 것으로, 본 발명의 방법을 이용하면 상기 화합물을 매우 간편하고 경제적인 방법에 따라 고수율로 대량 생산할 수 있다.