PROCESS FOR PRODUCING 3,5-DIAMINO-6-(4-AMINOCHLOROPHENYL)-1,2,4-TRIAZINE DERIVATIVES ACTING ON CENTRAL NERVOUS SYSTEM, AND PHARMACEUTICAL COMPOSITIONS COMPRISING SUCH COMPOUNDS

摘要

The invention provides compounds of formula (I) CHEM wherein at least one of R1, R2 and R3 is chloro and the others are selected from hydrogen and chloro; and R4 and R5 are the same or different and are each alkyl or hydrogen. The compounds may be used for the treatment or prophylaxis of a neurodegenerative of other neurological disorder of the CNS, the aetiology of which includes excessive release of the neurotransmitter glutamate.