Reaction of 3-(2,3-epoxypropyl)-4(3H)-quinazolinone and/or its 6,7-dichloro- and 7-bromo-6-chloro-derivatives (Ib, Ic) with 5-diethylamino-2-pentylamine, 3-diethylaminomethyl-4-hydroxyaniline, 3,4-methylenedioxyaniline and 4-dimethylaminoaniline gave the corresponding substituted 4(3H)-quinazolinones, IIa, IIIb, IVb, Vc and VIc. Reactions of 3-(2-chloroethyl)-4(3H)-quinazolinones with the substituted anilines, pyridine and pyrrolidine gave rise to 3-(2-amino-ethyl)-4(3H)-quinazolinones VIIIa-VIIIj, IX and X. The piperidine derivative XI was obtained by the action of 1-(2-chloroethyl) piperidine on 4(3H)-quinazolinone. Reactions of 2-chlorobenzyl chloride 4-chlorobenzylchloride and 3,4,5-trimethoxybenzoyl chloride with 4(3H)-quinazolinone afforded 3-(2-chlorobenzyl)-, 3-(4-chlorobenzyl)-4(3H)-quinazolinone and 3-(3,4,5,-trimethoxybenzoyl)-4(3H)-quinazolinone (XII, XIII, XIV). All the compounds were screened for coccidiostatic and antihelmintic activity.
3-(2,3-环氧丙基)-4(3H)-喹唑啉酮及/或其6,7-二氯和7-溴-6-氯衍生物(Ib, Ic)与5-二乙胺基-2-戊胺、3-二乙胺甲基-4-羟基苯胺、3,4-亚甲二氧基苯胺和4-二甲胺基苯胺反应,得到相应的取代4(3H)-喹唑啉酮,IIa、IIIb、IVb、Vc和VIc。3-(2-氯乙基)-4(3H)-喹唑啉酮与取代苯胺、吡啶和吡咯烷的反应产生3-(2-氨基乙基)-4(3H)-喹唑啉酮VIIIa-VIIIj、IX和X。通过1-(2-氯乙基)哌啶对4(3H)-喹唑啉酮的作用得到哌啶衍生物XI。2-氯苄基氯化物、4-氯苄基氯化物和3,4,5-三甲氧基苯甲酰氯与4(3H)-喹唑啉酮的反应得到3-(2-氯苄基)-、3-(4-氯苄基)-4(3H)-喹唑啉酮和3-(3,4,5-三甲氧基苯甲酰)-4(3H)-喹唑啉酮(XII、XIII、XIV)。所有化合物均进行了抗球虫和抗蠕虫活性筛选。