The N-tetrachlorophthaloyl-(TCP-)amino protecting group has been evaluated for use in solid-phasepeptidesynthesis. The TCP group was unaffected by exposure to either piperidine or N,N-diisopropylethylamine (DIEA), which suggests compatibility with both Fmoc and Boc solid-phasesynthesis protocols. Quantitative TCP removal was achieved by treatment with hydrazine/DMF (3:17) at 35 °C for 30 min or with
Synthesis of Nα-Tetrachlorophthaloyl (TCP)-Protected Amino Acids under Microwave Irradiation (MWI)
作者:Esther Cros、Marta Planas、Eduard Bardají
DOI:10.1055/s-2001-15215
日期:——
A range of N α-tetrachlorophthaloyl protected amino acids have been synthesized by an easy and efficient condensation procedure of the corresponding amino acid and tetrachlorophthaloyl anhydride under irradiation in an unmodified commercial microwave oven.
A new strategy for solid-phasesynthesis of C-terminal peptide amides based on the use of N-tetrachlorophthaloyl protected amino acids with acid-labile side-chain protection is described.