作者:Yoshio Nishimura、Eiki Shitara、Tomio Takeuchi
DOI:10.1016/s0040-4039(99)00184-7
日期:1999.3
Gem-diamine 1-N-iminosugars of l-fucose-type, a new type of glycosidase inhibitor, have been synthesized from d-ribono-γ-lactone, involving the formation of a gem-diamine 1-N-iminopyranose ring by the Mitsunobu reaction of an aminal as a key step. The analogue, (2S,3S,4R,5R)-2-trifluoroacetamido-5-methylpiperidine-3,4-diol was proved to be an extremely potent inhibitor against α-l-fucosidase (IC50
从d-核糖体-γ-内酯合成了一种新型的糖苷酶抑制剂l-岩藻糖型的宝石-二胺1- N-亚氨基糖,涉及到通过该方法形成的宝石-二胺1- N-亚氨基吡喃糖环。胺的光延反应是关键步骤。已证明类似物((2S,3S,4R,5R)-2-三氟乙酰氨基-5-甲基哌啶-3,4-二醇)是对α-1岩藻糖苷酶的极强抑制剂(IC 50 3 ngmL -1,Ki 5 ×10 -9 M)。