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DOI: 10.1055/s-1994-25485
Synthesis and Properties of 3′-Deoxypsiconucleosides: Anomeric 1-(3-Deoxy-D-erythro-2-hexulofuranosyl) thymines and 9-(3-Deoxy-D-erythro-2-hexulofuranosyl)adenines
Publication History
Publication Date:
17 September 2002 (online)
Anomeric 1-(3-deoxy-D-erythro-2-hexulofuranosyl)thymines and 9-(3-deoxy-D-erythro-2-hexulofuranosyl)adenines were prepared by tin(IV) chloride catalyzed N-glycosylation of trimethylsilylated thymine and N 6-benzoyladenine with methyl 3-deoxy-D-erythro-2-hexulofuranoside triacetate or tribenzoate, respectively. These O-glycosides used as starting materials were obtained by deoxygenation of 1,2:4,5-di-O-isopropylidene-β-D-fructopyranose and subsequent acid-catalyzed methanolysis of the resulting 3-deoxy derivative. The anomeric configuration of the nucleosides prepared was assigned by a combination of X-ray crystallography and 2D 1H NMR spectroscopy. The conformation and hydrolytic stability of these new nucleoside analogous are discussed.