Amide compounds having glutamate receptor-inhibiting activity and having the formula: ##STR1## (wherein R.sub.1 and R.sub.2 each is hydrogen atom, an alkyl group or an acyl group, or ##STR2## is a cyclic amino group, m is an integer of 1 to 3, n is an integer of 0 to 4, x is an integer of 2 to 6 and y is an integer of 0 to 3) or salts thereof, are provided. The compounds are useful as a medicine for therapy or/and prevention of sequelae of cerebral apoplexy in warm-blooded animals.