Sulphur containing derivatives

Claim 1

A compound of the formula ##STR24##, wherein R is a group of the formula ##STR25##in which R 1 , R 2 and R 3 each independently is hydrogen, halogen, lower alkyl, lower alkoxy, aryl-(lower alkoxy), aryloxy, phenyl, nitro, amino, lower alkylthio, trifluoromethyl, hydroxy, cyano, di(lower alkyl)amino, lower alkanoylamino, carboxyl, lower alkoxycarbonyl, lower alkylsulphonyl, hydroxymethyl, lower alkanoyloxy, amido, lower alkanoyl, sulphamoyl, mono(lower alkyl)-sulphamoyl, di(lower alkyl) sulphamoyl, aminocarbonyloxy, mono(lower alkyl)-amino-carbonyloxy, di(lower alkyl)aminocarbonyloxy or (lower alkylamino)-(lower alkyl) in which "aryl" means unsubstituted or substituted phenyl. The substituent being selected from halogen, lower alkyl, lower alkoxy, nitro and amino; R 4 is hydrogen or lower alkyl; R 5 , R 6 and R 7 each independently is hydrogen, halogen, lower alkyl, lower alkoxy, hydroxy or benzyloxy; X is a sulphur atom, SO or SO 2 ; Y is a straight-chain or branched-chain, aliphatic group which may be substituted with hydroxy and containing 2-8 carbon atoms, of which 2-4 carbon atoms are present in the chain; and Z is a straight-chain or branched-chain aliphatic group which may be substituted with hydroxy and containing 1-8 carbon atoms, of which 1-4 carbon atoms are present in the chain; m is zero or 1 and n is 2 or 3, and acid addition salts thereof.