Patent ID: 7244845

Claim:
A process for preparing a compound of Formula (I): and/or all stereoisomeric forms of the compound of the Formula (I) and/or mixtures of these forms in any ratio, and/or a physiologically tolerated salt of the compound of the Formula (I), wherein: R1 is —(C 1 –C 10 )-alkyl where alkyl is linear or branched; or —(C 2 –C 10 )-alkenyl where alkenyl is linear or branched; or —(C 2 –C 10 )-alkynyl where alkynyl is linear or branched; or —(C 1 –C 4 )-alkylphenyl; or —(C 1 –C 4 )-alkyl-(C 3 –C 7 )-cycloalkyl; or —(C 3 –C 7 )-cycloalkyl; or —CH 2 CF 3 ; and Q is a radical selected from wherein R 2 is —(C 1 –C 4 )-alkyl, and a is 0, 1, 2, or 3; wherein said process comprises a) reacting a heterocyclic carboxylic acid of Formula (V) where Q is as defined in Formula (I), with a silylating reagent; and b) reacting the product of step a) with chlorosulfonylbiphenylcarbamate of Formula (IV) where R1 is as defined in Formula (I).