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
Nitroso-Ene-type Cyclization Toward Diversified Synthesis of Amino Deoxysugars: A Proof of Concept
作者:Yuan Meng、Shunan Tao、Xiao-Yu Wu、Sha-Hua Huang、Ran Hong
DOI:10.1021/acs.orglett.3c00461
日期:2023.3.24
Amino deoxysugars are abundant in nature and play an important role in various biological functions, promoting numerous efforts to synthesize their structurally unique motifs. In this report, a denovo approach from a readily available lactic acid derivative is devised to construct several amino deoxysugars embedded in natural products, featuring a novel nitroso-ene-type cyclization to introduce a