N,3-dimethyl-N-[(2R)-4-(4-methylpiperidin-1-yl)butan-2-yl]benzenesulfonamide N,3-dimethyl-N-[(1R)-1-methyl-3-(4-methyl-1-piperidyl)propyl]benzenesulfonamide N,3-dimethyl-N-[(1R)-1-methyl-3-(4-methyl-1-piperidinyl)propyl]benzenesulfonamide SB258719