| abstract |
The present invention relates to therapeutically active novel amino, carboxy, alkyl derivatives of barbituric acid of Formula (I), wherein at least one of R1, R2, R3 or R4 comprises an NH2 moiety and at least one of R1, R2, R3 or R4 comprises one COOH moiety. Also provided is a method of preparing compounds of formula (I), and pharmaceutical compositions comprising the compounds. The novel compounds act as modulators of metabotropic glutamate receptors and, as such, are useful in treating diseases of the central nervous system related to the metabotropic glutamate receptor system. |