| abstract |
Compounds of the formulae (I) and (II), and pharmaceutically acceptable salts thereof, are found to be inhibitors of sensory neurone specific (SNS) sodium channels. They are therefore useful as analgesic and neuroprotective agents. Formula (I) & Formula (II) wherein, in the formula (I), R1 is an organic substituent, X1 and X2 are direct bonds or spacer moieties, Ar is aryl or heteroaryl and Y is a substituted aminoalkyl group or a heteroaryl-, heterocyclyl- or phenyl-containing moiety and, in the formula(II), R1, R2, R3, Ar and R4 are organic substituents, X is a spacer moiety and Het is a 5-membered heteroaryl or heterocyclyl group. |