Phenylethynyl and styryl derivatives of imidazole and fused ring heterocycles

摘要

This invention relates to a compound and the use of the compound of the formula ;wherein R¹, R², R³, R⁴ and R⁵ are as defined in the description, A signifies CHCH or CC; and B signifies ;wherein R⁶ to R²⁶, X and Y are as defined in the specification or a pharmaceutically acceptable salt thereof, for use in pharmaceutical compositions for the treatment or prevention of mGluR5 receptor mediated disorders.