摘要:
We have developed a synthetic route to pseudo dipeptides, analogs of certain fragments of beta-amyloid peptides (products of the APP protein hydrolysis). These compounds can be used for preparation of phosphinic acidic oligopeptides representing the peptide sequence of the beta-amyloid but containing the phosphorus isoster peptide fragment. Synthesis of pseudo ornityl-glutamate, pseudo arginyl-glutamate, pseudo glycyl-leucine, and pseudo isoleucyl-glycine via amino- and amidoalkylation of phosphonic acids containing the structural isoster of the corresponding amino acid is described.