Ò1,2,4¨ triazolo Ý4,3-a¨ quinoxaline derivatives, their preparation and use

摘要

Quinoxaline compounds of the general formula wherein R1 is COX', POX'X'' or alkyl substituted with COX' or POX'X'', and X' and X'' independently are hydroxy or alkoxy, and R6, R7, R8 and R9 independently are hydrogen, alkyl, halogen, NH2, NO2, CN, CF3, SO2NY'Y'' or COZ' wherein Z' is NY'Y'' or alkyl and Y' and Y'' independently are hydrogen or alkyl, triazolyl, imidazolyl, imidazolyl substituted with phenyl or alkyl, or R6 and R7, or R8 and R9, together form a further fused ring, are useful in the treatment of indications caused by hyperactivity of the excitatory neurotransmitters.