A quinolinone derivative which is a compound of formula (I): ##STR1## in which: R.sub.1 and R.sub.2 are each, independently of one another, a hydrogen or halogen atom or a (C.sub.1-4)alkyl radical; R.sub.3 is a hydrogen atom or a (C.sub.1-4)alkyl radical; R.sub.4 is an unsubstituted or substituted naphthyl, tetrahydronaphthyl, benzyl, phenyl, pyridyl, isoquinolyl or benzoyl radical; and X and Y are each a hydrogen atom or together form a bond; or a pharmaceutically acceptable acid addition salt thereof and, when X and Y are each a hydrogen atom, the diastereoisomers and enantiomers thereof.
一种
喹啉酮衍
生物,其
化学式为(I):##STR1##其中:R.sub.1和R.sub.2分别独立地是氢原子或卤素原子或(C.sub.1-4)烷基基团;R.sub.3是氢原子或(C.sub.1-4)烷基基团;R.sub.4是未取代或取代的
萘基、四氢
萘基、苄基、苯基、
吡啶基、
异喹啉基或苯甲酰基基团;X和Y分别是氢原子或一起形成键;或其药学上可接受的酸盐,当X和Y分别是氢原子时,其对映异构体和对映体。