Prokinetic compounds

Abstract

The present invention concerns novel oxadiazole derivatives of formula (I) ##STR1## the N-oxide forms, the pharmaceutically acceptable acid addition salts and the stereochemically isomeric forms thereof, wherein R.sup.1 is hydrogen or halo; R.sup.2 is C.sub.1-6 alkyl, C.sub.2-6 alkenyl or C.sub.2-6 alkynyl; R.sup.3 is hydrogen; or R.sup.2 and R.sup.3 taken together may form a C.sub.2-3 alkanediyl radical wherein one or two hydrogen atoms may be replaced by C.sub.1-4 alkyl; R.sup.4 is hydrogen or C.sub.1-6 alkyloxy; X is a bivalent radical of the formula ##STR2## L is a radical of formula -Alk-R.sup.5 or -Alk--O--R.sup.6, Alk is C.sub.1-12 alkanediyl; R.sup.5 is hydrogen, cyano, C.sub.1-6 alkylcarbonyl, C.sub.1-6 alkylsulfinyl, C.sub.1-6 alkylsulfonyl, aryl, arylcarbonyl, tetrahydrofuran, dioxolane, dioxolane substituted with C.sub.1-6 alkyl, dioxane, dioxane substituted with C.sub.1-6 alkyl; R.sup.6 is hydrogen, aryl, C.sub.1-6 alkyl, hydroxyC.sub.1-6 alkyl, C.sub.1-6 alkylcarbonyl; aryl is defined as phenyl or phenyl substituted with up to three substituents selected from halo, C.sub.1-6 alkyl or C.sub.1-6 alkyloxy. It further relates to pharmaceutical compositions comprising them, processes for preparing said compounds and compositions, and the use thereof as a medicine, in particular in the conditions involving a decreased motility of the colon.

Dependencies are inferred from the claim text.