Peptide Heterocycle Conjugates: A Diverted Edman Degradation Protocol for the Synthesis of N-Terminal 2-Iminohydantoins
作者:Ghotas Evindar、Robert A. Batey
DOI:10.1021/ol034032d
日期:2003.4.1
[reaction: see text] A modified Edmandegradation procedure provides an effective means of introducing a heterocycle at the N-terminus of an alpha-amino acid amide or peptide. Reaction of a peptide with an isothiocyanate, followed by dehydrothiolative trapping of the intermediate thiourea, by intramolecular cyclization of the weakly nucleophilic adjacent amide nitrogen, generates an iminohydantoin