The present invention describes a kind of technique synthesis 3- (2-cyanophenyl) -5- (2- pyridyl groups) -1-phenyl-1, the structure (1) that 2-dihydro-pyridin-2-one (Perampanel) is indicated by formula, and its salt, especially salt and pharmaceutically acceptable acid. The present invention is further directed to certain intermediates and is formed and/or for such process.