Structure−Activity Relationship of Heterobase-Modified 2‘-<i>C</i>-Methyl Ribonucleosides as Inhibitors of Hepatitis C Virus RNA Replication
作者:Anne B. Eldrup、Marija Prhavc、Jennifer Brooks、Balkrishen Bhat、Thazha P. Prakash、Quanlai Song、Sanjib Bera、Neelima Bhat、Prasad Dande、P. Dan Cook、C. Frank Bennett、Steven S. Carroll、Richard G. Ball、Michele Bosserman、Christine Burlein、Lawrence F. Colwell、John F. Fay、Osvaldo A. Flores、Krista Getty、Robert L. LaFemina、Joseph Leone、Malcolm MacCoss、Daniel R. McMasters、Joanne E. Tomassini、Derek von Langen、Bohdan Wolanski、David B. Olsen
DOI:10.1021/jm040068f
日期:2004.10.1
have recently identified 2'-C-methyladenosine and 2'-C-methylguanosine as potent nucleoside inhibitors of HCV RNA replication in vitro. However, both of these compounds suffered from significant limitations. 2'-C-Methyladenosine was found to be susceptible to enzymatic conversions by adenosine deaminase and purine nucleoside phosphorylase, and it displayed limited oral bioavailability in the rat. 2'-C-Methylguanosine
丙型肝炎病毒感染构成了重要的健康问题,需要更有效的治疗方法。我们最近确定2'-C-甲基腺苷和2'-C-甲基鸟苷是体外HCV RNA复制的有效核苷抑制剂。但是,这两种化合物都具有明显的局限性。发现2'-C-甲基腺苷易于通过腺苷脱氨酶和嘌呤核苷磷酸化酶进行酶促转化,并且在大鼠中显示出有限的口服生物利用度。另一方面,2'-C-甲基鸟苷既没有被有效地吸收到细胞中,也没有被磷酸化。作为解决这些限制的尝试的一部分,我们现在报告一系列异碱基修饰的2'-C-甲基核糖核苷的合成和评估。该系列核苷中的结构活性关系揭示了4-氨基-7-(2-C-甲基-β-d-呋喃呋喃糖基)-7H-吡咯并[2,3-d]嘧啶和4-氨基-5-氟-7-(2-C-甲基-β-d-呋喃呋喃糖基)-7H-吡咯并[2,3-d]嘧啶是有效且无细胞毒性的HCV RNA复制抑制剂。4-氨基-7-(2-C-甲基-β-d-呋喃呋喃糖基)-7H-吡咯并[2,