Diastereoselective synthesis of 5-(alditol-1-C-yl)-hydantoins and their use as precursors of polyhydroxylated-α-amino acids
作者:Fausta Ulgheri、Gianmauro Orrù、Marco Crisma、Pietro Spanu
DOI:10.1016/j.tetlet.2003.11.077
日期:2004.1
The synthesis of 5-(alditol-1-C-yl)-hydantoin derivatives was performed via diastereoselective aldol-type addition of 1,3-dibenzyl-hydantoin to enantiopure aldehydo sugars. Starting from the d-ribo-configured 5-(alditol-1-C-yl)-hydantoin template, the synthesis of (2R,3S,4R)-3,4,5-trihydroxynorvaline was carried out.
5-(醛糖醇-1- C-基)-乙内酰脲衍生物的合成是通过将1,3-二苄基-乙内酰脲非对映选择性醛醇型加成到对映体纯的醛糖中来进行的。从d-核糖基构型的5-(醛糖醇-1- C-基)-乙内酰脲模板开始,进行(2 R,3 S,4 R)-3,4,5-三羟基正缬氨酸的合成。