Oxidation of Peptides by Methyl(trifluoromethyl)dioxirane: The Protecting Group Matters
作者:Maria Rosaria Rella、Paul G. Williard
DOI:10.1021/jo061910n
日期:2007.1.1
Representative Boc-protected and acetyl-protected peptide methyl esters bearing alkyl side chains undergo effective oxidation using methyl(trifluoromethyl)dioxirane (1b) under mild conditions. We observe a protecting group dependency in the chemoselectivity displayed by the dioxirane 1b. N-Hydroxylation occurs in the case of the Boc-protected peptides, and side chain hydroxylation takes place in the
带有烷基侧链的代表性Boc保护和乙酰保护肽甲基酯在温和的条件下使用甲基(三氟甲基)二环氧乙烷(1b)进行了有效的氧化。我们观察到由二环氧乙烷1b显示的化学选择性中的保护基依赖性。在Boc保护的肽中会发生N-羟基氧化,在乙酰保护的肽中会发生侧链羟基化。两者都是有吸引力的转化,因为它们产生了用作有价值的合成子的衍生肽。