DERIVATIVES OF AMINOSULFONIC ACIDS, UTILIZATION OF THE SAME IN THE SYNTHESIS OF PSEUDOPEPTIDES AND PROCESS FOR THEIR PREPARATION

摘要

Derivatives of gamma-amino-alpha,beta-unsaturated sulphonic acids of formula (I), where: R is chosen among hydrogen; fragments corresponding to side-chains of natural amino acids, substituted or unsubstituted; linear, branched or cyclic alkyl chains; arylalkyl chains; aryl or heteroaromatic groups; Y indicates hydrogen, including possible saline forms of the corresponding amine; or any protective group commonly utilised for the protection of the amine group; X indicates Cl, OH, OCH2CH3, OCH3, ONBu4, NHCH2Ph; process for the preparation of the same and their utilisation in the synthesis of pseudopeptides characterised by the presence of at least one sulphonamide-type bond conjugated to a double bond.