申请人:Synthelabo
公开号:US05641785A1
公开(公告)日:1997-06-24
3,3a,4,5-Tetrahydro-1H-oxazolo[3,4-a]quinolin-1-one derivatives of formula (I) ##STR1## in which: n is 0 or 1, R.sub.1 represents a hydrogen atom or an ethenyl, methyl, ethyl, phenyl, hydroxymethyl or methoxymethyl group, and (i) R.sub.2 is a methyl, trifluoromethyl or cyano group, R.sub.3 is a hydrogen atom or a hydroxyl or benzyloxy group and R.sub.4 and R.sub.5 are hydrogen atoms, or (ii) R.sub.2 and R.sub.4 together form a --(CH.sub.2).sub.4 -- group, R.sub.3 is a hydroxyl group and R.sub.5 is a hydrogen atom, or (iii) R.sub.2 and R.sub.5 together form an --O--(CH.sub.2).sub.3 -- group, and R.sub.3 and R.sub.4 are hydrogen atoms, or (iv) R.sub.2 and R.sub.5 together form a --(CH.sub.2).sub.4 group, R.sub.3 is a hydroxyl group and R.sub.4 is a hydrogen atom, are useful as selective inhibitors of MAO-A or as mixed inhibitors of MAO-A and MAO-B.
3,3a,4,5-四氢-1H-噁唑并[3,4-a]喹啉-1-酮的衍生物的化学式(I)##STR1##其中:n为0或1,R.sub.1代表氢原子或乙烯基、甲基、乙基、苯基、羟甲基或甲氧基基团,以及(i)R.sub.2为甲基、三氟甲基或氰基,R.sub.3为氢原子或羟基或苄氧基,R.sub.4和R.sub.5为氢原子,或(ii)R.sub.2和R.sub.4共同形成一个--(CH.sub.2).sub.4--基团,R.sub.3为羟基,R.sub.5为氢原子,或(iii)R.sub.2和R.sub.5共同形成一个--O--(CH.sub.2).sub.3--基团,R.sub.3和R.sub.4为氢原子,或(iv)R.sub.2和R.sub.5共同形成一个--(CH.sub.2).sub.4基团,R.sub.3为羟基,R.sub.4为氢原子,可用作选择性MAO-A抑制剂或MAO-A和MAO-B的混合抑制剂。