Discovery of molluscicidal and cercaricidal activities of 3-substituted quinazolinone derivatives by a scaffold hopping approach using a pseudo-ring based on the intramolecular hydrogen bond formation
作者:Wei Guo、Lv-Yin Zheng、Yong-Dong Li、Ren-Miao Wu、Qiang Chen、Ding-Qiao Yang、Xiao-Lin Fan
DOI:10.1016/j.ejmech.2016.03.037
日期:2016.6
in current Schistosomiasis control. A pseudo-ring formed from salicylanilide by an intramolecular hydrogen bond led to the discovery of 3-substituted quinazolinone derivatives which showed a potent molluscicidal and cercaricidal activities.
A simple, efficient, and general method has been developed for the synthesis ofvarious 3-alkylquinazolin-4-one derivatives from quinazolin-4-one treated with alkylbromides under phase transfer catalysis condition. The structures of the compounds werecharacterized by elemental analysis, IR, 1H-NMR and 13C-NMR spectra. Title compound6-bromo-3-propylquinazolin-4-one (3h) was found to possess good antifungal activity.