| abstract |
2-HYDROXY-PROPYNIC ACID DERIVATIVES AND 3-HYDROXY-BENZOFURAN-2-ONA DERIVATIVES WITH AFFINITY FOR GABA-B-RECEPTOR. The present invention relates to compounds of formula I: wherein R ^ 1 ^, R ^ 2 ^, R ^ 3 ^, R ^ 4 ^, R ^ 5 ^ and R ^ 6 ^ are as defined in the specification and claims, whose compounds are active on the GABA <sym> B receptor and are useful in the control or prevention of diseases of the central nervous system, especially of diseases and disorders comprising anxiety, depression, epilepsy, schizophrenia, and cognitive disorders. |