Sugar-Modified Conjugated Diene Analogues of Adenosine and Uridine: Synthesis, Interaction with <i>S-</i>Adenosyl-<scp>l</scp>-homocysteine Hydrolase, and Antiviral and Cytostatic Effects
作者:Stanislaw F. Wnuk、Bong-Oh Ro、Carlos A. Valdez、Elzbieta Lewandowska、Neida X. Valdez、Pablo R. Sacasa、Dan Yin、Jinsong Zhang、Ronald T. Borchardt、Erik De Clercq
DOI:10.1021/jm020064f
日期:2002.6.1
Moffatt oxidation of 2',3'-O-isopropylideneuridine (1a) and treatment of the crude 5'-aldehyde with formylmethylene-stabilized Wittigreagent gave the vinylogously extended 7'-aldehyde2a. Condensation of 2a with ethoxycarbonyl- or dibromomethylene phosphorane reagents gave the conjugated dienes 6a and 4a, respectively. Deacetonization gave diene ester 7a [5'(E),7'(E); with s-trans conformation] and