The title compound 6 was synthesized from 2,3,5-tri-O-benzyl-D-arabinofuranose (7) in three steps and 48% overall yield. Moreover, it was shown, in the case of γ-hydroxy amide 9, that the Mitsunobu reaction is not suitable for the preparation of γ-lactams, because O-alkylation is predominant.
由2,3,5-三-O-苄基-D-阿拉伯
呋喃糖(7)分三步合成标题化合物6,总产率为48%。此外,在γ-羟基酰胺9的情况下,由于主要是O-烷基化,因此表明Mitsunobu反应不适合于γ-内酰胺的制备。