Abstract: Compound of formula (I): wherein: R1 and R2 each independently of the other represents hydrogen or alkyl, A represents alkylene, alkenylene or alkynylene, G1 represents wherein R3 and R4 each independently of the other represents hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, optionally substituted aryl or optionally substituted arylalkyl, or G1 represents heterocycloalkyl optionally substituted by alkyl, cycloalkyl, cycloalkylalkyl, nitrile, carboxy, alkoxycarbonyl, carbamoyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl or optionally substituted heteroarylalkyl, and which medicinal products containing the same/are useful as serotonin-reuptake inhibitors.