| abstract |
The present invention relates to a compound of formula (I) and pharmaceutically acceptable salts thereofn n n n n n n n here,n n n R, R 1 , X, Y have different meanings, and the compounds of general formula (I) are useful for treating sleep disorders including anxiety, epilepsy and insomnia, and inducing stability-hypnosis, gut, sleep and muscle relaxation. useful. The present invention also provides the above compounds, certain intermediate synthesis methods and the intermediates themselves.n n n Pyrimidine, GABA, receptors, anxiety, stable, sleep, epilepsy |