Stabilised ylides 1 and 10, prepared from perbenzylated and peracetylated allyl C-glucopyranosides, respectively, were reacted with differently protected D-serinal; osmylation of the obtained α,β-unsaturated ketones 3 and 12, followed by intramolecular reductive amination, afforded different imino-C-disaccharides 14, 15, 18, and 19 related to sucrose.
分别由过苄基化和过乙酰化的烯丙基C-
吡喃
葡萄糖苷制备的稳定化的酰基1和10与受不同保护的
D-丝氨酸反应;将获得的α,β-不饱和酮3和12进行甲磺酰化,然后进行分子内还原胺化,得到与
蔗糖有关的不同的亚
氨基-C-二糖14、15、18和19。