This invention provides pyridylthiazolidine carboxamide derivative shown by general formula (I) and pharmaceutically acceptable salts thereof: ##STR1## wherein A.sup.1 is a single bond, carbonyl group or lower alkylene group which may include a carbonyl group and R.sup.1 is a heterocyclic ring which may be substituted with a lower alkyl group and further provides N-substituted piperazine derivatives useful as intermediates for preparing said compounds (I).
该发明提供了一种由通式(I)所示的
吡啶基
噻唑烷羧酰胺衍
生物及其药学上可接受的盐:##STR1##其中,A.sup.1是单键,羰基或较低的含有羰基的烷基,R.sup.1是杂环环,可以用较低的烷基取代,并且进一步提供了用于制备所述化合物(I)的中间体的N-取代
哌嗪衍
生物。