2105675 9215591 PCTABS00016 Imidazotriazoloquinazoline compounds having general formula (I), wherein A together with the .alpha.-marked carbon atom and the .beta.-marked nitrogen atom is one of the groups (a) or (b); R1 is (c), (d), (e), (f), cyano or CO2R5, wherein R5 is H, alkyl, cycloalkyl, trifluoromethyl or alkoxymethyl; and R2, R3 and R4 independently are H, hydroxy, halogen, CN, alkyl, alkenyl, alkynyl, trifluoromethyl, alkoxy, dialkylaminoalkoxy, aralkoxy, aryloxy which may be substituted, a cyclic amino group, or NR6R7, wherein R6 and R7 independently are H or alkyl. The compounds are useful in psychopharmaceutical preparations as anticonvulsants, anxiolytics, hypnotics, antipsychotics, antiemetics, or in improving the cognitive function of the brain of mammals, or as benzodiazepine antagonists.
HETEROCYCLIC COMPOUNDS AND THEIR PREPARATION AND USE