Synlett, Table of Contents LETTER © Georg Thieme Verlag Stuttgart ˙ New York Efficient Synthesis of Fmoc-Protected Azido Amino Acids Yu Heng Lau, David R. Spring*Department of Chemistry, University of Cambridge, Lensfield Rd, Cambridge, CB2 1EW, UKFax: +44(1223)336362; e-Mail: spring@ch.cam.ac.uk; Recommend Article Abstract Buy Article All articles of this category Abstract The efficient two-step synthesis of Fmoc-protected l-azidoalanine and l-azidohomoalanine from readily available Fmoc-protected asparagine and glutamine, respectively, is reported. The synthetic route proceeds in good yield, requires no extra purification steps, and can be carried out on gram scale. The resulting azido amino acids are of sufficient purity for solid-phase peptide synthesis, as demonstrated in the synthesis of a model pentapeptide. Key words azides - amino acids - diazo transfer - Hofmann rearrangement - Fmoc solid-phase peptide synthesis Full Text References References 1a Staudinger H. Meyer J. Helv. Chim. Acta 1919, 2: 635 1b Saxon E. Bertozzi C. Science 2000, 287: 2007 2 Rostovtsev VV. Green LG. Fokin VV. Sharpless KB. Angew. Chem. Int. Ed. 2002, 41: 2596 3 van Kasteren SI. Kramer HB. Jensen HH. Campbell SJ. Kirkpatrick J. Oldham NJ. Anthony DC. Davis BG. Nature (London) 2007, 446: 1105 4 Kiick KL. Saxon E. Tirrell DA. Bertozzi CR. Proc. Natl. Acad. Sci. U.S.A. 2002, 99: 19 5 Link AJ. Vink MKS. Tirrell DA. J. Am. Chem. Soc. 2004, 126: 10598 6 Roice M. Johannsen I. Meldal M. QSAR Comb. Sci. 2004, 23: 662 7 Miller N. Williams GM. Brimble MA. Org. Lett. 2009, 11: 2409 8 Torres O. Yückel D. Bernardina M. Kumar K. Bong D. ChemBioChem 2008, 9: 1701 9a Oh K.-I. Lee J.-H. Joo C. Han H. Cho M. J. Phys. Chem. B 2008, 112: 10352 9b Taskent-Sezgin H. Chung J. Banerjee PS. Nagarajan S. Dyer RB. Carrico I. Raleigh DP. Angew. Chem. Int. Ed. 2010, 49: 7473 10 Le Chevalier Isaad A. Barbetti F. Rovero P. D’Ursi AM. Chelli M. Chorev M. Papini AM. Eur. J. Org. Chem. 2008, 31: 5308 11a Link AJ. Vink MKS. Tirrell DA. Nat. Protoc. 2007, 2: 1882 11b Link AJ. Vink MKS. Tirrell DA. Nat. Protoc. 2007, 2: 1884 11c Roth S. Thomas NR. Synlett 2010, 607 11d Roth S. Drewe WC. Thomas NR. Nat. Protoc. 2010, 5: 1967 12 Panda G. Rao NV. Synlett 2004, 714 13 Sun D. Jones V. Carson EI. Lee REB. Scherman MS. McNeil MR. Lee RE. Bioorg. Med. Chem. Lett. 2007, 17: 6899 14 Goddard-Borger ED. Stick RV. Org. Lett. 2007, 9: 3797 15a Rew Y. Goodman M. J. Org. Chem. 2002, 67: 8820 15b Thurieau C. Janiak P. Krantic S. Guyard C. Pillon A. Kucharczyk N. Vilaine JP. Fauchère JL. Eur. J. Med. Chem. 1995, 30: 115 16a Spring DR. Chem. Soc. Rev. 2005, 34: 472 16b O’Connor CJ. Laraia L. Spring DR. Chem. Soc. Rev. 2011, 40: in press; DOI: 10.1039/C1CS15053G For a recent review, see: 17a Galloway WRJD. Isidro-Llobet A. Spring DR. Nat. Commun. 2010, 1: 80 ; DOI: 10.1038/ncomms1081 For a recent application, see: 17b Isidro-Llobet A. Murillo T. Bello P. Cilibrizzi A. Hodgkinson JT. Galloway WRJD. Bender A. Welch M. Spring DR. Proc. Natl. Acad. Sci. U.S.A. 2011, 108: 6793 Supplementary Material Supplementary Material Supporting Information