3-(PYRROLIDIN-3-YL)-1,3,4-OXADIAZOL-2(3H)-ONE DERIVATIVES AND THEIR USE AS 5-HT4 LIGANDS

摘要

The invention concerns compounds of general formula (I) in which R1 represents hydrogen or an alkyl or cycloalkylmethyl group, X1 represents hydrogen or a halogen or an alkoxy group or OR1 and X1 together represent a group of formula -OCH2O-, -O(CH2)2-, -O(CH2)3-, -O(CH2)2O, or -O(CH2)3O-, X2 represents hydrogen, an amino group or a group of general formula -NHCO2R in which R represents an alkyl or phenylalkyl group, X3 represents hydrogen or a halogen, and R2 represents hydrogen or an alkyl, phenylalkyl or [(4-dimethylamino)piperidin-1-ylcarbonyl]alkyl group. The invention is applicable in therapy. Said compounds can be used for treating or preventing disorders in which 5-HT4 receptors are involved, whether in the central nervous, the gastrointestinal, the cardiovascular or the urinary system.