Synthesis of bisubstrate analogues targeting α-1,3-fucosyltransferase and their activities
作者:Masayuki Izumi、Syunsuke Kaneko、Hideya Yuasa、Hironobu Hashimoto
DOI:10.1039/b513897c
日期:——
product of a alpha-1,3-fucosyltransferase reaction. We selected guanosine-5'-diphospho-L-galactose as a donor mimic and 2-hydroxyethyl beta-D-galactoside as an acceptor mimic, and tethered these two mimics with a methylene or ethylene linker. For the synthesis, the 6-position of L-galactose and the 6-position of D-galactose were first tethered via a methylene or ethylene linker. The L-galactose moiety
我们基于Lewis X的三维结构设计了两个靶向α-1,3-岩藻糖基转移酶的双底物类似物,这是α-1,3-岩藻糖基转移酶反应的产物。我们选择鸟苷5'-二磷酸-L-半乳糖为供体模拟物,并选择2-羟乙基β-D-半乳糖苷为受体模拟物,并将这两个模拟物与亚甲基或乙烯连接基连接在一起。为了合成,首先通过亚甲基或乙烯连接基束缚L-半乳糖的6-位和D-半乳糖的6-位。然后将L-半乳糖部分转化为GDP衍生物。两种双底物类似物均是针对α-1,3-岩藻糖基转移酶V和VI的中度抑制剂。它们是α-1,3-岩藻糖基转移酶VI的底物这一事实表明,这些化合物与供体结合位点结合,