Abstract: The invention relates to new substituted naphthyridines of formula 1, as well as pharmacologically acceptable salts, diastereomers, enantiomers, racemates, hydrates or solvates thereof, wherein R1 is selected from among —O—R3 or —NR3R4, R3 is C1-6-alkyl which is substituted by R5 and R6, R5 is selected from hydrogen, branched or linear C1-6-alkyl, C2-6-alkenyl, —C1-6-alkylen-O—C1-3-alkyl, C1-3-haloalkyl, R6 is ring X wherein n is either 0 or 1, and is a either a single or a double bond and wherein A, B, D and E are each independently from one another selected from CH2, CH, C, N, NH, O or S and wherein ring X is attached to the molecule either via position A, B, D or E, wherein said ring X may optionally be further substituted by one, two or three residues each selected individually from the group consisting of -oxo, hydroxy, —C1-3-alkyl, —C1-3-haloalkyl, —O—C1-3-alkyl, —C1-3-alkanol and halogen, and wherein R4, R2, R7, R8, R9, R10, R11 and Q may have the meanings as given in claim 1, as well a

Abstract: This invention relates to compounds of formula I their use as positive allosteric modulators of mGlu5 receptor activity, pharmaceutical compositions containing the same, and methods of using the same as agents for treatment and/or prevention of neurological and psychiatric disorders associated with glutamate dysfunction such as schizophrenia or cognitive decline such as dementia or cognitive impairment. A, B, Ar, R1, R2, R3 have meanings given in the description.