title: A convenient and scalable synthesis of ethyl N-[(2-Boc-amino)ethyl]glycinate and its hydrochloride. Key intermediates for peptide nucleic acid synthesis.
abstract: An improved synthesis of ethyl N-[(2-Boc-amino)ethyl]glycinate and its hydrochloride salt is reported. The synthesis is based on the reductive alkylation of Boc-ethylenediamine with ethyl glyoxylate hydrate and furnishes the title compound in near quantitative yield and high purity without chromatography. This compound is suitable, as is, for the synthesis peptide nucleic acid monomers. Further, conversion to the hydrochloride salt provides a stable, nonhygroscopic solid that is a convenient form for handling and storage.
authors.affiliation: Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada.
authors.forename: Russell D
authors.initials: RD
authors.lastname: Viirre
authors.forename: Robert H E
authors.initials: RH
authors.lastname: Hudson
mesh_terms: D000478:Alkylation; D002384:Catalysis; D002845:Chromatography; D005998:Glycine / Q000031:analogs & derivatives / Q000138:chemical synthesis* / Q000737:chemistry*; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010084:Oxidation-Reduction; D020135:Peptide Nucleic Acids / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D007202:Indicators and Reagents; D020135:Peptide Nucleic Acids; C477979:ethyl N-((2-Boc-amino)ethyl)glycinate; D005998:Glycine