The 4-nitrobenzenesulfonyl group as a convenient N-protecting group for iminosugars—synthesis of oligosaccharide inhibitors of heparanase
作者:Zsuzsánna Csíki、Péter Fügedi
DOI:10.1016/j.tetlet.2009.11.042
日期:2010.1
The 4-nitrobenzenesulfonyl (nosyl) group can be used advantageously for the protection of the ring nitrogen atom of iminosugars. This group is conveniently introduced, is stable to most of the standard carbohydrate transformations and can be removed under mild conditions. The applicability of the nosyl group is demonstrated by the synthesis of sulfated oligosaccharides which are inhibitors of the enzyme
4-硝基苯磺酰基(nosyl)可有利地用于保护亚氨基糖的环氮原子。方便地引入该组,该组对大多数标准碳水化合物转化稳定,并且可以在温和条件下除去。通过合成硫酸化的寡糖(其是乙酰肝素酶的抑制剂),可以证明糖基的适用性。所述ñ - (4-硝基苯磺酰基)基团是正交与叠氮基函数。