The present invention relates to new mGluRl and niGluR5 receptor subtype preferring ligands of formula (I): wherein X represents a group selected from (CH2)n, CH=CH, NH, N(CH3), NHCH2, N(CH3)CH2, O, OCH2, CH2COO, NHCH2COO; n is an integer of O to 2; Y represents a subtituent selected from H, CH3, F, Cl, Br; Z is H or CH3; R is alkyl, cycloalkyl, an optionally substituted phenyl or an optionally substituted heteroaryl, and/or geometric isomers and/or salts and/or hydrates and/or solvates thereof, to the processes for producing the same, to pharmaceutical compositions containing the same and to their use in therapy and/or prevention of pathological conditions which require the modulation of mGluRl mGluR5 receptors such as neurological disorders, psychiatric disorders, acute and chronic pain and neuromuscular dysfunctions of the lower urinary tract.