Polysubstituted-2-(3-loweralkylamino-2-R0-propoxy)pyridines, process for preparing the same, and pharmaceutical compositions containing the same
申请人:Merck & Co., Inc.
公开号:EP0003278A1
公开(公告)日:1979-08-08
Novel substituted (3-loweralkylamino-2-R1O-propoxy) pyridines, their pharmaceutically acceptable salts and formula
R1 is H or
wherein L is selected from C1-C10 alkvl, phenyl and substituted phenyl having up to two substituents which are independently selected from C1-C4 alkyl, C,-C4 alkoxy and halo,
R2 is F, CN, CF3, Cl,
NO2,
-COORs wherein R5 is H, C1-C6 alkyl or C6-C12 carbocyclic aryl,
-CONR6R7 wherein R6 and R7 when separate, are H or C1-C6 alkyl and when joined, are -CH2-(CH2)3-CH2-,
-CH2-CH9-O-CH2-CH2, -CH2-CH2-NH-CH2-CH2- or -CH2-CH2-N(CH3)-CH2-CH2-,
and
R3 and R4 are independently selected from H, C1-C4 alkyl,
C1-C4alkyl
phenyl and substituted phenyl wherein said substituents are independently selected from C1-C4alkyl, Cl-C4alkoxy and halo, such that one of R3 and R4 is other than H,
and pharmaceutically acceptable salts thereof, and their preparation are disclosed. These pyridines have pharmaceutically useful properties such as β-adrenergic blocking activity.
新型取代的(3-低烷基氨基-2-R1O-丙氧基)吡啶及其药学上可接受的盐和式
R1 是 H 或
其中 L 选自 C1-C10 烷基、苯基和具有最多两个取代基的取代苯基,这 些取代基独立地选自 C1-C4 烷基、C,-C4 烷氧基和卤代、
R2 是 F、CN、CF3、Cl、
NO2、
-COORs,其中 R5 是 H、C1-C6 烷基或 C6-C12 碳环芳基、
-CONR6R7,其中 R6 和 R7 分开时为 H 或 C1-C6 烷基,连接时为 -CH2-(CH2)3-CH2-、
-CH2-CH9-O-CH2-CH2、-CH2-CH2-NH-CH2-CH2 或 -CH2-CH2-N(CH3)-CH2-CH2、
和
R3 和 R4 独立选自 H、C1-C4 烷基、
C1-C4 烷基
苯基和取代苯基,其中所述取代基独立选自 C1-C4烷基、Cl-C4烷氧基和卤代,这样 R3 和 R4 中的一个不是 H、
公开了这些吡啶及其药学上可接受的盐类,以及它们的制备方法。这些吡啶具有药用特性,如β-肾上腺素能阻断活性。