Ketonderivate des Indans, ihre Herstellung und ihre therapeutische Anwendung

The subject of the invention is new ketonic indane derivatives of formula in which R1 represents a hydrogen or halogen atom or a radical of formula NxR3R3', where x is an integer from 1 to 2 and R3 and R3' are hydrogenated or oxygenated monovalent C1 to C5 organic radicals, X and Y are chosen independently from oxygen or a radical NyR4 where y is an integer from 1 to 2 and R4 is a C1 to C4 alkyl radical or a hydroxyl or alkoxy radical, A is an oxygen atom or a radical NR5 where R5 is a hydrogen atom or a linear or branched C1 to C5 organic radical and R2 is a linear or branched monovalent C1 to C6 organic radical or an aromatic or heteroaromatic ring having one or a number of substituted or unsubstituted heteroatoms, R2 having the above definition with the exception of the phenyl radical or phenyl radical substituted by an alkoxy or hydroxy group when R1 is hydrogen.