Pyridinecarboxamide derivatives of the formula ##STR1## (wherein n represents an integer of 14-18, and R represents a hydrogen atom or a straight or branched C.sub.1 -C.sub.4 alkyl group) or physiologically acceptable salts thereof. The compounds have excellent inhibiting activity of cerebral edema, especially ischemic cerebral edema, and inhibiting activity of delayed death of neuronal cells (an inhibiting activity of Ca-influx in neuronal cells). Cerebral edema is a pathologic condition accompanying cerebrovascular disorders, especially the acute stage of cerebrovascular disorders and then the compounds are useful as an agent for inhibiting cerebral edema or a therapeutic agent for cerebrovascular disorders. Moreover, the compounds have no hypotensive action which is considered to be side-effect in treating the acute stage cerebrovascular disorders and hardly show a behavior suppressing action so that they are an excellent therapeutic agent for, in particular, the acute stage cerebrovascular disorders. Moreover, the compounds show a cerebral protective activity (an anti-anoxic activity), an increasing activity of cerebral blood flow, and an inhibiting activity of lipid peroxidation and these activities may lead to the increased utility as a therapeutic agent for cerebrovascular disorders.
Pyridinecarboxamide衍
生物的
化学式为##STR1##(其中n代表14-18的整数,R代表氢原子或直链或支链C.sub.1-C.sub.4烷基),或其生理上可接受的盐。这些化合物具有出色的抑制脑
水肿活性,特别是缺血性脑
水肿的抑制活性,以及对神经细胞延迟死亡的抑制活性(对神经细胞中Ca流入的抑制活性)。脑
水肿是伴随脑血管疾病的病理状况,特别是脑血管疾病的急性阶段,这些化合物可用作抑制脑
水肿的药剂或脑血管疾病的治疗剂。此外,这些化合物没有被认为是治疗急性脑血管疾病的副作用的降压作用,几乎没有显示出抑制行为,因此它们是特别适用于治疗急性脑血管疾病的优秀治疗剂。此外,这些化合物表现出脑保护活性(抗缺氧活性),增加脑血流活性,以及抑制脂质过氧化活性,这些活性可能导致其作为脑血管疾病治疗剂的实用性增加。