Synthesis and biological evaluation of 5R- and 5S-methyl substituted d- and l-configuration 1,3-dioxolane nucleoside analogs
作者:Sanjib Bera、Leila Malik、Balkrishen Bhat、Steven S. Carroll、Renee Hrin、Malcolm MacCoss、Daniel R. McMasters、Michael D. Miller、Greg Moyer、David B. Olsen、William A. Schleif、Joanne E. Tomassini、Anne B. Eldrup
DOI:10.1016/j.bmc.2004.08.054
日期:2004.12
1,3-Dioxolane and 1,3-oxathiolane nucleoside analogs play an important role in anti-viral and anti-neoplastic chemotherapy. We report here the synthesis of 2-hydroxymethyl-5-methyl-1,3-dioxolanylpurine nucleosides from 4-acetoxy-2-(benzyloxymethyl)-5-methyldioxolane. Dioxolanes of alpha-D-, beta-D-, alpha-L-, and beta-L-configuration were prepared, that included 5-methyl derivatives of both 5R and
1,3-二氧戊环和1,3-氧杂硫杂环戊烷核苷类似物在抗病毒和抗肿瘤化疗中起重要作用。我们在这里报告从4-乙酰氧基-2-(苄氧基甲基)-5-甲基二氧戊环合成2-羟甲基-5-甲基-1,3-二氧戊环基嘌呤核苷。制备具有α-D-,β-D-,α-L-和β-L-构型的二氧戊环,其包括5R和5S构型的5-甲基衍生物。分子力学计算表明5S和5R非对映异构体1,3-二氧戊环具有明显的构象偏倚,表明甲基取代可能会改变1,3-二氧戊环的构象偏好。在基于细胞的亚基因组复制子测定中评估了1,3-二氧戊环抑制HCV RNA复制的能力。另外,在基于细胞的测定中评估了针对牛痘和HIV的活性。