Synthesis, structure–activity relationships, and bioactivity evaluation of 6-bromo-quinazolinone derivatives
摘要:
6-Bromo-quinazolinone derivatives were prepared and evaluated for the ability to inhibit cyclooxygenase-2 (COX-2). An extensive structure-activity relationship work was carried out, thus some potent and selective COX-2 inhibitors were identified. The key compound isothiocyanate was prepared through a simple and ecological method using di-2-pyridyl thionocarbonate in substitution of the thiophosgene, a potential air pollutant. The cyclization reaction of intermediate derivatives was developed through the methods reporting by Wamhoff. The anti-inflammatory activity of the derivatives (5-12) was evaluated by determining (by Western blot) the expression of cyclooxygenase (COX)-2, of inducible NO synthase (iNOS) and of intercellular adhesion molecule-1 (ICAM-1). The biological assays showed that the derivatives 7, 9, 10, 12 act as potent inhibitors of COX-2, iNOS, and ICAM-1 expression in human keratinocytes NCTC-2544 cells. This work showed that the new derivatives could be used as a novel class of anti-inflammatory agents.
MODULATORS OF ACETYL-COENZYME A CARBOXYLASE AND METHODS OF USE THEREOF
申请人:Anderson Richard
公开号:US20080200461A1
公开(公告)日:2008-08-21
The present invention provides compounds of formula I:
along with methods of use thereof for the control of agricultural pests, particularly fungal pests, weedy pests and insect pests, as well as use as pharmaceuticals, particularly the treatment of obesity, metabolic syndrome, atherosclerosis, cardiovascular disease and insulin resistance, e.g., type II or adult-onset diabetes as well as fungal pathogens of humans and animals
[EN] QUINAZOLINONE DERIVATIVES AS ANTIVIRAL AGENTS<br/>[FR] DÉRIVÉS DE QUINAZOLINONE EN TANT QU'AGENTS ANTIVIRAUX
申请人:GLAXOSMITHKLINE LLC
公开号:WO2012087938A1
公开(公告)日:2012-06-28
Provided are compounds and pharmaceutically acceptable salts thereof, their pharmaceutical compositions, their methods of preparation, and their use for treating viral infections mediated by a member of the Flaviviridae family of viruses such as hepatitis C virus (HCV).
Microwave-Mediated Heterocyclization to Benzimidazo[2,1-<i>b</i>]quinazolin-12(5<i>H</i>)-ones
作者:Richard D. Carpenter、Kit S. Lam、Mark J. Kurth
DOI:10.1021/jo0618066
日期:2007.1.1
An effective route to benzimidazo[2,1-b]quinazolin-12(5H)-ones from commercially available o-aryl isothiocyanate esters and o-phenylenediamines is reported. This method accommodates a variety of substituents on either starting material and proceeds under microwave irradiation in the presence of barium hydroxide, conditions that do not hydrolyze methyl ester substituents. The pharmacologically pertinent benzimidazoquinazolinone heterocycle is delivered in excellent yield and purity via both solution- and solid-phase protocols, the latter involving traceless release from the resin.