Tetrahedron Letters p. 2343 - 2346 (1995)
Update date:2022-08-04
Topics:
Meos, Helle
Haga, Mati
Tougu, Vello
It is shown that the C-terminal amide groups in N-protected peptides could be efficiently replaced by ester groups via kinetically-controlled papain-catalyzed acyl transfer reactions in aqueous methanol. The specificity of papain was substantially shifted towards the cleavage of C-terminal amide bond in dipeptide substrates by methanol, thus suppressing undesired peptide bond cleavage during esterification.
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