| abstract |
The invention relates to a process for the preparation of peptide analogues, which are processed for use in human medicine and veterinary medicine for therapeutic purposes to preparations. By the process according to the invention, peptide analogues of the general formula wherein X is H or an N-protecting group, B is an aminoacyl or acyl group, C is an aminoacyl group and Y is a group bonded via a sulfur atom, and their physiologically acceptable salts and / or optical Isomers prepared. formula |