The invention relates to compounds of formula ##STR1## in which R.sub.1 is selected from the groups R.sub.3 and OR.sub.3, R is selected from H and a group CHR.sub.2 R', in which R.sub.2 is selected from H, alkyl, carboxy and carboxamido and R', is H, alkyl or phenyl, Z represents S or O; and m and n, which may be identical or different, equal 1 or 2, and their N-oxides, salts and quaternary ammonium derivatives. The invention also relates to the process for preparing these compounds, as well as to pharmaceutical compositions containing them.
该发明涉及以下结构的化合物:##STR1## 其中 R.sub.1 从R.sub.3 和OR.sub.3 两个基团中选择,R 从H 和一个基团CHR.sub.2 R' 中选择,其中 R.sub.2 从H、烷基、羧基和羧酰胺基中选择,R' 为H、烷基或苯基,Z 代表S 或 O;m 和 n 可以相同也可以不同,均为1 或2,以及它们的N-氧化物、盐和季
铵衍
生物。该发明还涉及制备这些化合物的方法,以及含有它们的药物组合物。