摘要

The first synthesis of 1,4-diazepine 2,5-dione peptides containing a beta-amino acid in which the beta 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 tetrameric cyclopeptides comprising two identical sugar beta-amino acid and alpha-amino acid residues were also isolated, these structures could be of interest as new potential host molecules.

  • 出版日期2004-3-1