Anticancer and Antiviral Effects and Inactivation of <i>S</i>-Adenosyl-<scp>l</scp>-homocysteine Hydrolase with 5‘-Carboxaldehydes and Oximes Synthesized from Adenosine and Sugar-Modified Analogues
作者:Stanislaw F. Wnuk、Chong-Sheng Yuan、Ronald T. Borchardt、Jan Balzarini、Erik De Clercq、Morris J. Robins
DOI:10.1021/jm960828p
日期:1997.5.1
5'-carboxaldehyde analogues by Moffatt oxidation (dimethyl sulfoxide/dicyclohexylcarbodiimide/dichloroacetic acid) or with the Dess-Martin periodinane reagent. Hydrolysis of a 5'-fluoro-5'-S-methyl-5'-thio (alpha-fluoro thioether) arabinosyl derivative also gave the 5'-carboxaldehyde. Treatment of 5'-carboxaldehydes with hydroxylamine [or O-(methyl, ethyl, and benzyl)hydroxylamine] hydrochloride gave
Inhibition of hepatitis C viral RNA-dependent RNA polymerase by α-P-boranophosphate nucleotides: Exploring a potential strategy for mechanism-based HCV drug design
作者:Marcus Adrian Cheek、Mariam L. Sharaf、Mikhail I. Dobrikov、Barbara Ramsay Shaw
DOI:10.1016/j.antiviral.2013.02.014
日期:2013.5
comparable potency shift (21-fold). These experiments also indicate that the boranophosphate analogs 5a and 5b inhibit HCV NS5B through a competitive mode of inhibition. This evidence, together with previous crystal structure data, further supports the idea that HCV NS5B (in a similar manner to HIV-1 RT) discriminates against the 3'-deoxy modification via lost interactions between the 3'-OH on the ribose