Phenylacetic acid derivatives, drug containing such a derivative, use of such a derivative for the preparation of a drug, process for the preparation of the drug and analogous process for the preparation of the phenylacetic acid derivatives

摘要

1. Phenylacetic acid derivatives of general formula see diagramm : EP0208200,P24,F1 wherein R1 represents a pyrrolidino, piperidino, 4-methylpiperidino, 3-methyl-piperidino, 3,3-dimethyl-piperidino, 3,5-dimethyl-piperidino or hexamethyleneimino group, R2 represents a hydrogen, fluorine or chlorine atom or a methyl or methoxy group, R4 represents a hydrogen atom, an alkyl group with 1 to 3 carbon atoms or an allyl group, R3 represents an alkyl group with 1 or 2 carbon atoms substituted by a tetrahydrofuranyl, tetrahydropyranyl or cycloalkyl group, in which the cycloalkyl part may contain 3 to 7 carbon atoms, an alkenyl group with 3 to 5 carbon atoms or an alkynyl group with 3 or 4 carbon atoms, and W represents methyl, hydroxymethyl, formyl, carboxy or alkoxycarbonyl group, whilst the alkoxy part may contain from 1 to 4 carbon atoms and may be substituted by a phenyl group, and the enantiomers and salts thereof.