Sulphonylbenzyl-substituted imidazolypropenoic acid derivatives

A sulphonylbenzyl-substituted imidazolylpropenoic acid derivative of the formula ##STR80## in which R.sup.1 represents straight-chain or branched alkyl or alkenyl each having up to 8 carbon atoms, each of which is optionally substituted by cycloalkyl having 3 to 6 carbon atoms, or represents cycloalkyl having 3 to 8 carbon atoms,

• R.sup.2 represents hydrogen, halogen or straight-chain or branched perfluoroalkyl having up to 8 carbon atoms,
• n represents a number 0, 1, 2, 3 or 4,
• R.sup.3 represents hydrogen or
• represents straight-chain or branched alkyl having up to 8 carbon atoms,
• represents thienyl or
• represents aryl having 6 to 10 carbon atoms, or represents cycloalkyl having 3 to 8 carbon atoms, wherein said thienyl, aryl cycloalkyl moieties are optionally substituted up to 2 times by identical or different substituents from the group consisting of halogen, hydroxyl, nitro, cyano, trifluoromethyl, trifluoromethoxy, straight-chain or branched alkyl, and straight-chain or branched alkoxy wherein said alkyl or alkoxy have up to 8 carbon atoms,
• R.sup.4 represents hydroxyl, straight-chain or branched alkoxy having up to 8 carbon atoms, phenoxy or a group of the formula --NR.sup.6 R.sup.7
• in which
• R.sup.6 and R.sup.7 are identical or different and denote hydrogen or straight-chain or branched alkyl having up to 6 carbon atoms or phenyl,
• R.sup.5 represents hydrogen, halogen or straight-chain or branched alkyl having up to 8 carbon atoms, or represents straight-chain or branched perfluoroalkyl having up to 6 carbon atoms, or
• represents a group of the formula --OX, in which
• X denotes hydrogen, benzyl, a hydroxyl protective group selected from the group consisting of benzyloxycarbonyl, methanesulphonyl, toluenesulphonyl, 2-nitrobenzyl, 4-nitrobenzyl, 2-nitrobenzyloxycarbonyl, 4-nitrobenzyloxycarbonyl, tert-butoxycarbonyl, allyloxycarbonyl, 4-methoxycarbonyl, acetyl, trichloroacetyl, 2,2,2-trichloroethoxycarbonyl, 2,4-dimethoxybenzyloxycarbonyl, 2-(methylthiomethoxy)ethoxycarbonyl, benzoyl, 4-methylbenzoyl, 4-nitrobenzoyl, 4-fluorobenzoyl, 4-chlorobenzoyl or 4-methoxybenzoyl
• or denotes straight-chain or branched alkyl having up to 8 carbon atoms
• A represents pyrrolidinyl which is optionally substituted up to 2 times by identical or different perfluoroalkyl having up to 5 carbon atoms or by a radical of the formula ##STR81## in which R.sup.9 has the above mentioned meaning of R.sup.4
• and
• R.sup.10 and R.sup.11 are identical or different and denote hydrogen, straight-chain or branched alkyl having up to 8 carbon atoms or phenyl,
• or a salt thereof.