Single Step Syntheses of ω-9-Fluorenylmethyl Esters of Aspartic and Glutamic Acids

Abstract
Base lability of the 9-fluorenylmethyl ester makes this group useful in solid phase peptide synthesis when used in combination with the tBoc methodology for preparing cyclic peptides. We describe a simple one step synthesis of the 9-fluorenylmethyl esters of aspartic and glutamic acids.