作者:A. Zabeer、A. Bhagat、O.P. Gupta、G.D. Singh、M.S. Youssouf、K.L. Dhar、O.P. Suri、K.A. Suri、N.K. Satti、B.D. Gupta、G.N. Qazi
DOI:10.1016/j.ejmech.2005.09.010
日期:2006.3
Taking lead from a naturally occurring quinazolin vasicine, a number of compounds were developed and evaluated for bronchodilator and anti-allergic activities. One of these compounds was 2,4-diethoxy-6,7,8,9,10,12-hexahydroazepino[2,1-b]quinazolin-12-one, hereinafter named 95-4, exhibited marked bronchodilator activity evaluated on contracted trachea or constricted tracheo-bronchial tree. On intestinal smooth muscle too it showed relaxant effect. Trachea] relaxant effect was not found to be mediated through beta-adrenoceptors. Cumulative dose-response study with acetylcholine and histamine indicated for its non-specific direct effect on smooth muscles. 95-4 was found to be more potent than theophylline and less to that of salbutamol on dose basis. Tested by a number of experimental models, it was found devoid of anti-allergic activity. It was also found to be free from any adverse effect.95-4 due to its marked bronchial muscle relaxant effect can find use in conditions associated with spasm of bronchial muscles. (c) 2006 Published by Elsevier SAS.