DIAMINES IN THE TREATMENT OF ARRHYTHMIA

摘要

A method for the treatment of arrhythmia in human or non-human mammals, which method comprises the administration of an effective, non-toxic amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof and/or a pharmaceutically acceptable solvate thereof, wherein R1 and R4 are independently phenyl optionally substituted by one, two or three of halogen, C1-4 alkoxy, C1-4 alkyl, cyano, hydroxy, nitro, NR5R6 or O2SNR5R6 wherein R5 and R6 are independently hydrogen or C1-6 alkyl or together are C3-6 polymethylene, or disubstituted at adjacent carbon atoms by C1-2 alkylenedioxy and optionally further substituted by one of the above groups; R2 is selected from (CH2)zCN where z is 0 or an integer from 1 to 4, C1-12 alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl C1-4 alkyl, phenyl C1-4 alkyl, pyridyl, pyridyl C1-4 alkyl, COR7, COCH2COR7, SO2R7, CO2R7, CONHR7 and CSNHR7, where R7 is selected from C1-12 alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl C1-4 alkyl, phenyl and phenyl C1-4 alkyl, any alkyl moiety in R7 optionally substituted by hydroxy or C1-4 alkanoyloxy, any pyridyl or phenyl moiety in R2 optionally substituted as defined for R1 and R4 and any cycloalkyl moiety in R2 optionally substituted by one or two C1-4 alkyl groups; R3 is hydrogen, C2-6 alkyl, C2-6 alkene or C3-8 cycloalkyl; A represents C2-5 alkylene; and B represents C1-4 alkylene; compounds and pharmaceutical compositions for use in such method.