从D-核糖体-γ-内酯到L-岩藻糖型的宝石二胺1-N-亚氨基糖的新途径,一种新的糖苷酶抑制剂家族,已经形成了宝石二胺1-N-亚氨基吡喃糖的有效途径。作为关键步骤,通过氨基的Mitsunobu反应产生环。事实证明,这些类似物是针对α-L-岩藻糖苷酶的极强抑制剂(IC50约为3 ng mL(-1),Ki约为5 x 10(-9)M)。本研究表明,在培养基中产生的环状甲烷二胺会影响糖苷酶,这是L-岩藻糖型宝石二胺1-N-亚氨基糖的真正活性形式。
从D-核糖体-γ-内酯到L-岩藻糖型的宝石二胺1-N-亚氨基糖的新途径,一种新的糖苷酶抑制剂家族,已经形成了宝石二胺1-N-亚氨基吡喃糖的有效途径。作为关键步骤,通过氨基的Mitsunobu反应产生环。事实证明,这些类似物是针对α-L-岩藻糖苷酶的极强抑制剂(IC50约为3 ng mL(-1),Ki约为5 x 10(-9)M)。本研究表明,在培养基中产生的环状甲烷二胺会影响糖苷酶,这是L-岩藻糖型宝石二胺1-N-亚氨基糖的真正活性形式。
Enantioselective synthesis of a new family of α-l-fucosidase inhibitors
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