| abstract |
The present invention relates to compounds of the following general formula (I) and their pharmaceutically acceptable salts,n n n n n n n n here,n n n R, R 1, X, Y has a different meaning, the compounds of formula (I) are useful in the treatment of sleep disorders including anxiety, epilepsy and insomnia, stability-hypnotic, like, sleep and muscle relaxation induced useful. The present invention also provides the above compound, a method for synthesizing a desired intermediate, and an intermediate itself.n n n Pyrimidine, GABA, receptor, anxiety, stability, sleep, epilepsy |