Total Synthesis of Nucleoside Antibiotics Amicetin, Plicacetin, and Cytosaminomycin A—D
作者:Jiqiang Fu、Peng Xu、Biao Yu
DOI:10.1002/cjoc.202100284
日期:2021.10
Amicetin and congeners constitute a small family of complex pyrimidine nucleosides, which exhibit strong antibiotic activities against Gram-positive bacteria and notably against strains of Mycobacterium tuberculosis. Herein, we report chemical synthesis of a series of disaccharide congeners of the amicetin family, including amicetin, plicacetin, and cytosaminomycin A—D. It is the first time for successful
Amicetin, Bamicetin and Plicacetin. Chemical Studies
作者:Theodore H. Haskell
DOI:10.1021/ja01536a056
日期:1958.2
Total Synthesis of Nucleoside Antibiotics Plicacetin and Streptcytosine A
作者:Jiqiang Fu、Stephane Laval、Biao Yu
DOI:10.1021/acs.joc.8b00006
日期:2018.7.6
Disaccharide nucleosideantibiotics plicacetin and streptcytosine A (also named rocheicoside A) were effectively synthesized through the common precursor cytosamine. The amosamine and amicetose moieties were efficiently assembled through an α-selective O-glycosylation, and the cytosine nucleus was subsequently introduced through a β-selective gold(I)-catalyzed N-glycosylation. Further microwave-assisted
The antibacterial and antiviral agent amicetin is a disaccharide nucleoside antibiotic featuring a unique α-(1→4)-glycoside bond between amosamine and amicetose, characteristic of a retaining glycosylation. In this study, two key steps for amosamine biosynthesis were investigated: the N-methyltransferase AmiH was demonstrated to be requisite for the dimethylation in amosamine, and the glycosyltransferase