申请人:Meuji Seika Kaisha Ltd.
公开号:US04229448A1
公开(公告)日:1980-10-21
5-Substituted picolinic acid derivatives represented by the formula (I): ##STR1## wherein R.sub.1 represents a straight or branched chain halogen-substituted alkyl group having 2 to 6 carbon atoms or a substituted phenyl group having the formula ##STR2## wherein R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, an amino group, an N-alkyl-substituted amino group, an acylamino group, an acetyl group, an acyloxy group, a hydroxy group or a halogen-substituted alkyl group or R.sub.3 and R.sub.4, when taken together, represent a polymethylene chain; and R.sub.2 represents an --OM group wherein M represents a hydrogen, sodium, potassium, calcium, aluminium or magnesium atom, a straight or branched chain or cyclic alkoxy group having 1 to 6 carbon atoms, an aminoalkoxy group, a phenoxy group, a substituted phenoxy group, a 5-indanyloxy group, an acyloxyalkyloxy group having the formula ##STR3## wherein R.sub.5 represents a hydrogen atom or a methyl group and R.sub.6 represents a lower alkyl group having 1 to 6 carbon atoms, a phenyl group or a substituted phenyl group, or an amino group represented by the formula ##STR4## wherein R.sub.7 and R.sub.8, which may be the same or different, each represents a hydrogen atom, a lower alkyl group, or a phenyl group which are useful as anti-hypertensive agents, a process for preparing the above 5-substituted picolinic acid derivatives, and anti-hypertensive compositions containing the same.
式(I)所表示的5-取代吡啶甲酸衍生物,其中R1表示具有2至6个碳原子的直链或支链卤素取代的烷基或具有以下式的取代苯基的衍生物:
其中R3和R4,它们可以相同也可以不同,每个表示氢原子,卤素原子,低碳基,低氧基,硝基,氨基,N-烷基取代的氨基,酰胺基,乙酰基,酰氧基,羟基或卤素取代的烷基或R3和R4在一起时表示聚亚甲基链;R2表示-OM基,其中M表示氢,钠,钾,钙,铝或镁原子,具有1至6个碳原子的直链或支链或环状氧基基团,氨基氧基基团,苯氧基,取代苯氧基,5-茚烯氧基基团,具有以下式的酰氧基烷氧基基团:
其中R5表示氢原子或甲基基团,R6表示具有1至6个碳原子的低碳基,苯基或取代苯基,或由以下式表示的氨基基团:
其中R7和R8,它们可以相同也可以不同,每个表示氢原子,低碳基或苯基,它们有用作抗高血压剂的作用,一种制备上述5-取代吡啶甲酸衍生物的方法,以及含有它们的抗高血压组合物。