作者:Viviane Boyer、Benjamin G. Davis、Mincho Stanchev、Antony J. Fairbanks
DOI:10.1039/b104137c
日期:——
The protease-catalyzed synthesis of amino acid
esterâcarbohydrate conjugates as glycopeptide analogues has been
achieved in a highly regioselective and carbohydrate-specific manner using
amino acid vinyl ester acyl donors and minimally or completely unprotected
carbohydrate acyl acceptors, which together probed active sites of
proteases to reveal yield efficiencies that are modulated by the
carbohydrate C-2 substituent, and that may be exploited to allow selective
one-pot syntheses.
利用氨基酸乙烯酯酰基供体和最小程度或完全无保护的碳水化合物酰基受体,通过蛋白酶催化的氨基酸酯-碳水化合物偶联反应,实现了作为糖肽类似物的氨基酸酯-碳水化合物偶联物的高区域选择性和碳水化合物特异性合成。这些偶联物共同探测了蛋白酶的活性位点,揭示了由碳水化合物C-2取代基调节的产率效率,并可能被利用以实现选择性的单锅合成。