The invention relates to a compound of formula (I):
1
wherein:
A represents pyridine, pyridinium or piperidine
R
1
, R
2
, R
3
and R
4
are as defined in the description
R
5
represents hydrogen, a nitrogen-containing heterocycle or a group of formula (II):
2
R
6
represents hydrogen or linear or branched (C
1
-C
6
)alkyl.
and medicinal products containing the same which are useful in treating pain or deficiencies in memory.
本发明涉及化合物(I)的公式:1其中:A代表
吡啶,
吡啶盐或
哌啶;R1、R2、R3和R4如描述中所定义;R5代表
氢、含
氮杂环或公式(II)的基团:2;R6代表
氢或线性或支链的(C1-C6)烷基。以及含有该化合物的药物,可用于治疗疼痛或记忆力不足。