作者:Yuki Iwayama、Hiromune Ando、Hideharu Ishida、Makoto Kiso
DOI:10.1002/chem.200802706
日期:2009.4.27
A neuritegenic ganglioside from sea cucumber, HLG‐2 (see figure), has been synthesized for the first time. The unique tandem of sialic acids, Neu5Gc‐α(2,4)‐NeuAc, was established by the combination of a reactive N‐Troc sialyl donor and a 1,5‐lactamized sialyl acceptor. The ceramide counterpart was assembled in a stereoselective manner. Direct connection of the trisaccharide and the ceramide successfully
首次合成了海参中的神经突神经节苷脂HLG-2(见图)。唾液酸的独特串联,Neu5Gc-α(2,4)-NeuAc,是由反应性N- Troc唾液酸供体和1,5-内酰胺化的唾液酸受体共同建立的。以立体选择性的方式组装神经酰胺对应物。三糖和神经酰胺的直接连接成功提供了HLG-2的前体,该前体已以纯净形式转化为神经节苷脂HLG-2。