Chemo-Enzymatic Synthesis of Fmoc-Peptide Fragments
摘要:
Optically pure Fmoc-peptide fragments have been prepared via dicyclohexylcarbodiimide coupling of N-protected amino acids with amino acid esters, followed by enzyme-catalyzed ester hydrolysis by alcalase with a high concentration of organic solvent in a high yield.
Chemo-Enzymatic Synthesis of Fmoc-Peptide Fragments
摘要:
Optically pure Fmoc-peptide fragments have been prepared via dicyclohexylcarbodiimide coupling of N-protected amino acids with amino acid esters, followed by enzyme-catalyzed ester hydrolysis by alcalase with a high concentration of organic solvent in a high yield.
new family of uronium salts (HTMU, HMMU, and HDmPyMU) based on isonitroso Meldrum's acid (HONM) are reported as stand-alone couplingreagents. Amide bond formation with the use of these reagents occurred more quickly than that with other uronium salts as a result of the presence of a neighboring group effect with a cyclic structure. Thus, these novel onium salts were often moreeffective in the acylation