that 6-halouracils substituted at position C5 by certain hydrophobic groups exhibit significant inhibitory activity against this enzyme. The most potent compounds bear a five- or six-membered cyclic substituent containing a pi-electron system at C5 and a chlorine atom attached at C6. 6-Chloro-5-cyclopent-1-en-1-yluracil 7a is the most efficient derivative in this study, with Ki = 0.20 +/- 0.03 microM
Nucleosides. 136. Synthesis and antiviral effects of several 1-(2-deoxy-2-fluoro-.beta.-D-arabinofuranosyl)-5-alkyluracils. Some structure-activity relationships
作者:Tsann Long Su、Kyoichi A. Watanabe、Raymond F. Schinazi、Jack J. Fox
DOI:10.1021/jm00151a025
日期:1986.1
In order to study structure-activityrelationships between antiherpetic activity and the size of the C-5 alkyl substituents of 2'-fluoro-ara-U derivatives, six new nucleosides (1c-h) were synthesized. The 5-allyl analogue 1c was prepared by a Pd(II)-catalyzed reaction of 5-(chloromercuri)-1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)uracil with allyl chloride. Partial hydrogenation of 1c afforded the