| abstract |
Pharmaceutical compositions having anti-ulcer activity, containing as an active ingredient a compound of the formula (1):n wherein Het is a pyridinyl group, Ar is a phenyl or a 5- or 6- membered monocyclic heteroaromatic group, R is an alkyl, alkenyl, alkynyl, cyanoalkyl, carbamidoalkyl or aminoalkyl group, and m and n are ecah 0 or 1, with the proviso that m + n is not 2, or an N-oxide thereof. |