Studies on biologically active halogenated compounds. II. Chemical modifications of 6-amino-2-fluoromethyl-3-(o-tolyl)-4(3H)-quinazolinone and the CNS depressant activities of related compounds.
作者:JUNICHI TANI、YOSHIHISA YAMADA、TAKASHI OCHIAI、RYUICHI ISHIDA、ICHIZO INOUE、TOYONARI OINE
DOI:10.1248/cpb.27.2675
日期:——
A number of derivatives of 6-amino-2-fluoromethyl-3-(o-tolyl)-4 (3H)-quinazolinone (15), a potent muscle relaxant, have been prepared and screened in terms of the loss of righting reflex test and the rotating rod test in mice. Several derivatives with additional fluorine substitution or with repositioning of the fluorine atom exhibited high activities. Other structural modifications included acylation, carbamoylation, and alkoxycarbonylation of the 6-amino group, hydroxylation at the 3-tolyl group, and replacement of the fluorine atom at the 2-fluoromethyl group by oxygen, nitrogen, and sulfur nucleophiles ; these modifications all resulted in loss of activity.
制备了多种强效肌肉松弛剂6-氨基-2-氟甲基-3-(邻甲苯基)-4(3H)-喹唑啉酮(15)衍生物,并通过翻正反射丧失试验进行筛选以及小鼠旋转棒试验。具有额外氟取代或氟原子重新定位的几种衍生物表现出高活性。其他结构修饰包括6-氨基的酰化、氨基甲酰化和烷氧基羰基化、3-甲苯基的羟基化以及2-氟甲基上的氟原子被氧、氮和硫亲核体取代;这些修改都导致活性丧失。