A piperidine derivative having the formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different from each other, are (i) a not-substituted phenyl group or a phenyl group substituted by a halogen atom, trifluoromethyl group, a C.sub.1-5 alkyl group or a C.sub.1-5 alkoxyl group, (ii) a C.sub.3-7 cycloalkyl group, (iii) pyridyl group or (iv) thienyl group, R.sup.3 is (i) hydrogen atom, (ii) a halogen atom, (iii) a C.sub.1-4 alkyl group or (iv) a C.sub.1-4 alkoxyl group, R.sup.4 is (i) hydrogen atom or (ii) a C.sub.1-4 alkyl group. R.sup.5 is (i) a not-substituted C.sub.1-5 alkyl group or a C.sub.1-5 alkyl group substituted by a halogen atom, (ii) phenyl group or (iii) thienyl group and Z is (i) a C.sub.1-6 alkylene group, (ii) a C.sub.2-6 alkenylene group or (iii) a C.sub.3-6 alkynylene group or a pharmacologically acceptable salt thereof. According to the present invention, an anti-allergic agent and a therapeutic agent for ischemic heart disease without toxicity can be provided.
具有以下式(I)的
吡啶衍生物:##STR1## 其中R.sup.1和R.sup.2,可以相同也可以不同,是(i)未取代的苯基或通过卤素原子、三
氟甲基基团、C.sub.1-5烷基或C.sub.1-5烷氧基取代的苯基,(ii)C.sub.3-7环烷基,(iii)
吡啶基或(iv)
噻吩基,R.sup.3是(i)氢原子,(ii)卤素原子,(iii)C.sub.1-4烷基或(iv)C.sub.1-4烷氧基,R.sup.4是(i)氢原子或(ii)C.sub.1-4烷基,R.sup.5是(i)未取代的C.sub.1-5烷基或通过卤素原子取代的C.sub.1-5烷基,(ii)苯基或(iii)
噻吩基,Z是(i)C.sub.1-6烷基,(ii)C.sub.2-6烯基或(iii)C.sub.3-6炔基或其药学上可接受的盐。根据本发明,可以提供一种无毒性的抗过敏剂和治疗缺血性心脏病的药物。