Direct Conversion of Resin-Bound Peptides to C-Terminal Esters
作者:Rushia A. Turner、Robert J. Weber、R. Scott Lokey
DOI:10.1021/ol100471k
日期:2010.4.16
A mild and effective method was developed to convert peptides immobilized on the 2-chlorotrityl and Wang resins directly to C-terminal esters. After conventional Fmoc peptide synthesis, treatment with anhydrous HCl (0.2−3 M) in a variety of alcohols was shown to produce the corresponding peptide esters in good yield and purity. Under the mildest conditions investigated, acid-sensitive protection groups