BENZOXAZOLES AND BENZOTHIAZOLES,PROCESS FOR THEIR PREPARATION,AND PHARMACEUTICAL COMPOSITIONS CONTAINING THESE COMPOUNDS

1. Claims for the Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL Benzoxazoles of general formula see diagramm : EP0034743,P9,F2 in which R1 represents a hydrogen atom ; a straight or branched alkyl group with 1 to 7 carbon atoms which can be substituted by an alkoxy group with 1 to 3 carbon atoms ; a cycloalkyl group with 3 to 7 carbon atoms ; an alkyl group with 1 to 3 carbon atoms substituted by a phenyl group which can be substituted by one or two alkoxy groups with 1 to 3 carbon atoms ; or a phenyl group which can be substituted by an alkyl or alkoxy group each with 1 to 3 carbon atoms, by a trifluormethyl, nitro or cyano group or by a fluorine, chlorine or bromine atom ; and in addition one of the mono-substituted phenyl groups mentioned above can be substituted by one or two alkyl groups with 1 to 3 carbon atoms or by an alkoxy group with 1 to 3 carbon atoms or by a fluorine, chlorine or bromine atom ; and R2 represents a hydrogen atom or an alkyl group with 1 to 3 carbon atoms ; and their optically active antipodes as well as their physiologically compatible acid addition salts with inorganic or organic acids. 1. Claims for the Contracting State : AT Process for producing benzoxazoles of general formula see diagramm : EP0034743,P10,F4 in which R1 represents a hydrogen atom ; a straight or branched alkyl group with 1 to 7 carbon atoms which can be substituted by an alkoxy group with 1 to 3 carbon atoms ; a cycloalkyl group with 3 to 7 carbon atoms ; an alkyl group with 1 to 3 carbon atoms substituted by a phenyl group which can be substituted by one or two alkoxy groups with 1 to 3 carbon atoms ; or a phenyl group which can be substituted by an alkyl or alkoxy group each with 1 to 3 carbon atoms, by a trifluormethyl, nitro or cyano group or by a fluorine, chlorine or bromine atom ; and additionally one of the mono-substituted phenyl groups mentioned above can be substituted by one or two alkyl groups with 1 to 3 carbon atoms or by an alkoxy group with 1 to 3 carbon atoms or by a fluorine, chlorine or bromine atom ; and R2 represents a hydrogen atom or an alkyl group with 1 to 3 carbon atoms ; and their optically active antipodes as well as their physiologically compatible acid addition salts with inorganic or organic acids characterised in that see diagramm : EP0034743,P11,F1 in which R1 and R2 are as defined in the introduction, X represents a mercapto, alkylmercapto, arylmercapto or aralkylmercapto group, and Y represents a hydrogen atom o