PEPTIDOMIMETICS CONTAINING 6-PEPTIDYLAMINO-1-NAPHTHALENESULFONAMIDE MOIETIES

摘要

Disclosed are compounds of formula (I) or the pharmaceutically acceptable nontoxic salts thereof wherein: R1 is benzyl group or a peptide of formula (a) wherein R3 and R4 independently represent free or protected amino acid side chains; R5 is hydroxy, alkoxy, benzoxy, an amino acid or a peptide residue; and R2 is an amino acid or a peptide residue, which compounds are inhibitors of activated protein C having high specificity for the enzyme. The present invention also provides compounds of formula (II) or the pharmaceutically acceptable salts thereof wherein: R3 and R4 independently represent free or protected amino acid side chains; R5 is hydroxy, alkoxy, benzoxy, an amino acid or a peptide residue; and R6 is 6-aminonaphthalenesulfonamide attached to the peptide group via the sulfonamide nitrogen atom or either a free or protected amino group attached to the peptide group via a terminal nitrogen atom.