申请人:Nikken Chemicals Company, Limited
公开号:EP0943615A1
公开(公告)日:1999-09-22
A 1,4-dihydropyridine derivative having the formula (I):
wherein, R1 represents a substituted or unsubstituted phenyl or heterocyclic group, R2 represents a C1 to C5 lower alkyl group, R3 represents a substituted or unsubstituted C2 to C8 alkyl, alkenyl, alkynyl or substituted or unsubstituted cycloalkyl group, R4 represents -A-R5, wherein A represents a C2 to C8 alkylene group or a substituted or unsubstituted C2 to C8 alkenylene group, and R5 represents a substituted or unsubstituted pyridyl, pyridylcarbonyl or piperadinyl group and a drug for overcoming resistance to an anti-cancer drug or a drug increasing the effect of an anti-cancer drug containing as an effective ingredient the derivative or its pharmacologically acceptable salt or hydrate.
一种具有以下式(I)的1,4-二氢吡啶衍生物:
其中,R1代表取代或未取代的苯基或杂环基团,R2代表C1至C5的低碳链基团,R3代表取代或未取代的C2至C8的烷基、烯基、炔基或取代或未取代的环烷基团,R4代表-A-R5,其中A代表C2至C8的烷基链或取代或未取代的C2至C8的烯基链,R5代表取代或未取代的吡啶基、吡啶基甲酰基或哌啶基团,以及一种用作克服抗癌药物的抗药性或增加抗癌药物效果的药物,其有效成分为该衍生物或其药理学上可接受的盐或水合物。