Wirsching J, Voss J, Giesler A, Kopf J, Adiwidjaja G, Balzarini J, De Clercq E. Thiosugars. X. Novel nucleoside analogues derived from 4-thio-L-lyxofuranose.
NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2004;
22:1867-97. [PMID:
14609228 DOI:
10.1081/ncn-120025236]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
1-O-Acetyl-2,3,5-tri-O-benzyl-4-thio-L-lyxofuranose 1 was transformed into O-benzyl- and O-acetyl-protected 1-(4-thio-L-lyxofuranosyl) nucleoside derivatives by use of the TMSOTf method. Debenzylation with boron tribromide or deacetylation with sodium methoxide yielded the corresponding pyrimidine (7-11, 17, 18, 26 and 27) and purine (29 and 34) nucleoside analogues. The anomeric configurations were determined by NMR spectroscopy and, in the case of the 5-halo- (7-9) and nitrouridine derivative 11 and the 6-methylcytidine derivative 27, by X-ray structural analyses.--The unprotected nucleosides were not anti-virically inhibitory at 250 microM.
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