Protected aminooxyacetic acid derivative for the incorporation of an N-terminal O-alkylhydroxylamine moiety, which is used in the chemoselective ligation of unprotected peptide fragments, for the conjugation to lipids and glycosides, and for the introduction of labels by oxime formation. Peptides containing AOAc may be cleaved selectively at the N-O bond with Zn/AcOH.
See also the 12-aminooxydodecanoic acid derivative A-4720.