摘要:
The present invention is directed to a method for preparing pyridazine compounds, optionally pyridazine comprising (poly)peptides, (poly)peptide derivatives and peptidomimetics, by reacting a compound, optionally a (poly)peptide, (poly)peptide derivative or peptidomimetic, comprising at least one α-keto-ß3-glycine (aminopyruvate), with a non-, mono-, or disubstituted 1,2,4,5-tetrazine. It further relates to (poly)peptides, (poly)peptide derivatives and peptidomi-metics comprising at least one pyridazine, the pyridazine optionally forming part of the (poly)-peptide and peptidomimetic backbone, in particular to said (poly)peptides, (poly)peptide derivatives and peptidomimetics further comprising an analytical, purification, diagnostic, medicinal, reactive, solubilization and/or stabilization substituent(s) bound to at least one pyridazine. The invention also encompasses corresponding uses of these (poly)peptides, (poly)peptide derivatives and peptidomimetics for identification, quantification, purification, solubilization and stabilization, therapy and/or diagnosis.