Phenylhydrazide as an Enzyme-Labile Protecting Group in Peptide Synthesis
作者:Martin Völkert、Surrinder Koul、Gernot H. Müller、Manfred Lehnig、Herbert Waldmann
DOI:10.1021/jo0259966
日期:2002.10.1
The enzymatic cleavage of amino acid phenylhydrazides with the enzyme tyrosinase (EC 1.14.18.1) offers a new, mild, and selective method for C-terminal deprotection of peptides. The advantages of the described methodology are the very mild oxidative removal of the protecting group at room temperature and pH 7, a high chemo- and regioselectivity, and the availability of the biocatalyst. Even in oxygen-saturated