Synthesis of 4′-aminopantetheine and derivatives to probe aminoglycoside N-6′-acetyltransferase
作者:Xuxu Yan、T. Olukayode Akinnusi、Aaron T. Larsen、Karine Auclair
DOI:10.1039/c0ob01018a
日期:——
A convenient synthesis of 4â²-aminopantetheine from commercial D-pantethine is reported. The amino group was introduced by reductive amination in order to avoid substitution at a sterically congested position. Derivatives of 4â²-aminopantetheine were also prepared to evaluate the effect of O-to-N substitution on inhibitors of the resistance-causing enzyme aminoglycoside N-6â²-acetyltransferase. The biological results combined with docking studies indicate that in spite of its reported unusual flexibility and ability to adopt different folds, this enzyme is highly specific for AcCoA.
报道了一种从商业化的D-泛硫碱(D-pantethine)合成4′-氨基泛硫碱(4′-aminopantetheine)的简便方法。通过还原胺化引入氨基,以避免在空间拥挤的位置发生取代。还制备了4′-氨基泛硫碱的衍生物,以评估O-N取代对导致抗性酶氨基糖苷N-6′-乙酰转移酶抑制剂的影响。结合生物学结果和对接研究,尽管有报道称该酶具有不寻常的灵活性和采取不同折叠的能力,但其对AcCoA具有高度特异性。