Preparation and Use of Cysteine Orthoesters for Solid-Supported Synthesis of Peptides
作者:Zedu Huang、Darren J. Derksen、John C. Vederas
DOI:10.1021/ol100645t
日期:2010.5.21
Synthesis of a chiral cysteine derivative 2 with the carboxyl protected by an acid-labile 4-methyl-2,6,7-trioxabicyclo[2.2.2]octyl (OBO) orthoester is reported. A disulfide anchoring strategy is used to link the sulfur of this OBO cysteine derivative onto modified trityl polystyrene resin for synthesis of peptides having C-terminal cysteine (Cys) residues. Fmoc-based solid phase peptidesynthesis affords