by the coupling with another selenoglycoside affords the corresponding glycosylated selenoglycoside, which could be directly used for the next glycosylation. The iteration of this sequence allows the synthesis of a variety of oligosaccharides including an elicitor active heptasaccharide. [reaction: see text]
在不存在糖基受体的情况下将
硒代糖苷立体选择性转化为β-
溴代糖苷,然后与另一种
硒代糖苷偶联,得到相应的糖基化
硒代糖苷,其可直接用于下一个糖基化。该序列的迭代使得可以合成包括
引发剂活性七糖在内的多种
寡糖。[反应:看文字]