An efficient and versatile synthesis of GlcNAcstatins—potent and selective O-GlcNAcase inhibitors built on the tetrahydroimidazo[1,2-a]pyridine scaffold
作者:Vladimir S. Borodkin、Daan M.F. van Aalten
DOI:10.1016/j.tet.2010.07.037
日期:2010.9
We report a novel approach to the synthesis of GlcNAcstatins—members of an emerging family of potent and selective inhibitors of peptidyl O-GlcNAc hydrolase build upon tetrahydroimidazo[1,2-a]pyridine scaffold. Making use of a streamlined synthetic sequence featuring de novo synthesis of imidazoles from glyoxal, ammonia and aldehydes, a properly functionalised linear GlcNAcstatin precursor has been
我们报告了一种合成 GlcNAcstatins 的新方法,该方法是建立在四氢咪唑 [1,2- a ] 吡啶支架上的肽基O -GlcNAc 水解酶的有效和选择性抑制剂的新兴家族成员。利用以乙二醛、氨和醛从头合成咪唑为特征的流线型合成序列,从甲基 3,4- O- (2',3'-dimethoxybutane-2'开始有效地制备了适当功能化的线性 GlcNAcstatin 前体,3'-二基) -α- d-吡喃甘露糖苷。随后在分子内 S N 2 过程中线性前体的闭环提供了关键的稠合d-甘露糖-咪唑 GlcNAcstatin 前体,产率极佳。最后,这一关键中间体的一系列转化允许快速获得各种带有 C(2)-苯乙基基团和一系列N (8) 酰基取代基的目标化合物。The versatility of the new approach stems from an appropriate choice of a