Anomeric spiroannelated 1,4-diazepine 2,5-diones from furano exo-glycals: towards a new class of spironucleosides
作者:Claude Taillefumier、Sabine Thielges、Yves Chapleur
DOI:10.1016/j.tet.2004.01.030
日期:2004.3
The first synthesis of 1,4-diazepine 2,5-dione peptides containing a β-amino acid in which the β carbon is also the anomeric carbon of a furanoid sugar is described. These new anomeric spirosugars obtained with a stereoselective control in the d-gulo, d-manno, d-allo and d-ribo series can be regarded as the first members of a new class of spironucleosides. In the course of our study, two symmetrical
描述了包含β-氨基酸的1,4-二氮杂2,5-二酮肽的第一合成,其中β碳也是呋喃糖的异头碳。在d- gulo,d- manno,d- allo和d- ribo系列中通过立体选择性控制获得的这些新的异头螺旋糖可被视为新型螺核苷的首批成员。在我们的研究过程中,还分离了包含两个相同的糖β-氨基酸和α-氨基酸残基的两个对称的四聚环肽,这些结构可能作为新的潜在宿主分子而受到关注。