Synthesis of <scp>l</scp>-Daunosamine and <scp>l</scp>-Ristosamine Glycosides via Photoinduced Aziridination. Conversion to Thioglycosides for Use in Glycosylation Reactions
作者:Matthew T. Mendlik、Peng Tao、Christopher M. Hadad、Robert S. Coleman、Todd L. Lowary
DOI:10.1021/jo061167z
日期:2006.10.1
l-ristosamine glycosides is reported. Photoreaction of methyl 4-O-azidocarbonyl-2,3,6-trideoxy-l-hex-2-enopyranosides, followed by aziridine opening, leads to 3-amino-3-N-,4-O-carbonyl-2,3,6-trideoxy precursors to the aminosugar methyl glycosides. Conversion of these precursors to their thioglycoside analogues followed by N-acetylation of the carbamate moiety permits high yielding and, in some cases, stereoselective