COMPOSITIONS USEFUL AS INHIBITORS OF VOLTAGE-GATED SODIUM CHANNELS.

摘要

The present invention relates to compounds, particularly those of formula (I'), where R, R1, R2, R3, R4, x and z are as defined in the claims, useful as inhibitors of voltage-gated sodium channels. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.