Synthesis, Antiviral Activity, and Mechanism of Drug Resistance of <scp>d</scp>- and <scp>l</scp>-2‘,3‘-Didehydro-2‘,3‘-dideoxy-2‘-fluorocarbocyclic Nucleosides
作者:Jianing Wang、Yunho Jin、Kimberly L. Rapp、Matthew Bennett、Raymond F. Schinazi、Chung K. Chu
DOI:10.1021/jm050096d
日期:2005.6.1
Carbocyclic nucleosides have received much attention due to their interesting biological activity and metabolic stability. Among nucleoside analogues, a fluorine substitution on the carbohydrate moiety or introduction of a 2',3'-unsaturated structure motif has been proven to be successful in producing effective antiviral agents. By combining these structural features, both D- and L-2',3'-dideoxy-2',3'-did
碳环核苷由于其有趣的生物学活性和代谢稳定性而受到广泛关注。在核苷类似物中,已证明在碳水化合物部分上进行氟取代或引入2',3'-不饱和结构基序可成功产生有效的抗病毒剂。通过结合这些结构特征,合成了D-和L-2',3'-二脱氧-2',3'-二氢-2'-氟碳环核苷(D-和L-2'FC-d4Ns),潜在的抗HIV药物。从D-核糖立体定向合成靶D-和L-碳环核苷。研究了合成化合物对活化人外周血单个核(PBM)细胞中HIV-1的构效关系,从中我们发现L-2',3'-dideoxy-2' 3'-didehydro-2'-氟腺苷类似物(L-2'FC-d4A)46显示有效的抗HIV活性(EC50 = 0.77 microM),尽管它对耐拉米夫定的变异体(HIV-1M184V)具有交叉耐药性。建模研究表明,计算出的相对结合能与活性/抗性数据之间具有良好的相关性。建模研究还表明,与其D-partpart相比,额