作者:Lulu Teressa Poulsen、Mads Heuckendorff、Henrik H. Jensen
DOI:10.1039/c7ob02966g
日期:——
established that 2-O-benzoyl-3,4,6-tri-O-benzyl protected β-SEt, β-SPh and β-SBox glucosyl donors are not superarmed when using the NIS/TfOH promoter system, but instead have a similar reactivity as their classically armed tetra-O-benzyl protected glucosyl counterparts. The β-SBox 2-O-benzoyl-3,4,6-tri-O-benzyl glucosyl donor, however, was found to be superarmed under DMTST activation. Our studies have shown
已经确定,使用NIS / TfOH启动子系统时,2 - O-苯甲酰基-3,4,6-三O-苄基保护的β-SEt,β-SPh和β-SBox葡萄糖基供体不是超武装的,而是具有具有与其经典武装的四-O-苄基保护的葡糖基对应物相似的反应性。然而,发现β-SBox2- O-苯甲酰基-3,4,6-三-O-苄基葡糖基供体在DMTST活化下是超武装的。我们的研究表明,具有DMTST活化作用的β-SBox2- O-苯甲酰基-3,4,6-三-O-苄基葡萄糖基供体的反应性可能是独特的,而葡萄糖基供体的高反应性与DMTST活化有关。 2 - O-苯甲酰基-3,4,6-三-O-苄基保护图案不像前面所建议的那样普遍。