申请人:Taisho Pharmaceutical Co., Ltd.
公开号:US04948899A1
公开(公告)日:1990-08-14
A 1,4-dihydropyridine derivative represented by the formula ##STR1## wherein R.sup.1 is a hydrogen atom, an alkoxy group having 1 to 4 carbon atoms, a mercapto group, an alkylcarbonylthio group in which the alkyl group has 1 to 4 carbon atoms or a benzoylthio group, R.sup.2 is a mercapto group, an alkylcarbonylthio group in which the alkyl group has 1 to 4 carbon atoms, a benzoylthio group or a 2-cyanoethylthio group, A and B are the same or different and are each an alkylene group having 1 to 4 carbon atoms, and X is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group is disclosed. These compounds increase the therapeutic effect of drug-resistant cancers.
公开了一种由以下式子表示的1,4-二氢吡啶衍生物:##STR1## 其中,R.sup.1是氢原子,具有1至4个碳原子的烷氧基,巯基,烷基羰基硫基,其中烷基具有1至4个碳原子,或苯甲酰硫基;R.sup.2是巯基,烷基羰基硫基,其中烷基具有1至4个碳原子,苯甲酰硫基或2-氰基乙基硫基;A和B相同或不同,分别是具有1至4个碳原子的亚烷基基团;X是氢原子,卤素原子,硝基或三氟甲基基团。这些化合物增强了耐药癌症的治疗效果。