5-amido-(1H-indol-2-yl)-piperazin-1-yl-methanone derivatives

摘要

The present invention relates to compounds of formula I wherein A, G and R1 to R3 are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prevention of diseases which are associated with the modulation of H3 receptors.