Solid phase and solution synthesis of NvocLys(CO(CH2)5NH-NBD)OCH2CN, a trifunctional fluorescent lysine derivative

Amino Acids. 2009 Feb;36(2):203-7. doi: 10.1007/s00726-008-0048-3. Epub 2008 Mar 26.

Abstract

Herein, we describe a general strategy for the facile synthesis of a multifunctional amino acid derivative bearing both fluorescent and photolabile groups such as the lysine derivative NvocLys(CO(CH2)5NH-NBD)OCH2CN (1) that can be used as a biophysical tool for studying protein structure. The synthetic strategy involves functionalization of the amine groups while the amino acid is attached to a solid support, followed by esterification of the carboxylic acid in solution. The solid support protects the caboxylic acid, preventing a side reaction associated with the synthesis in solution and obviating the need for chromatographic purification of several intermediates. This synthetic strategy can be used for the preparation of a variety of amino acid derivatives with unusual alpha-amine and side chain functionalities.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • 4-Chloro-7-nitrobenzofurazan / analogs & derivatives*
  • 4-Chloro-7-nitrobenzofurazan / chemical synthesis
  • Fluorescent Dyes / chemical synthesis*
  • Lysine / analogs & derivatives*
  • Lysine / chemical synthesis

Substances

  • Fluorescent Dyes
  • Nalpha-nitroveratryloxycarbonylamino-N-epsilon-6-(N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)hexanoyllysine cyanomethyl ester
  • 4-Chloro-7-nitrobenzofurazan
  • Lysine