The synthesis of difluoro and trifluoro analogues of pyrimidine deoxyribonucleosides: a novel approach using elemental fluorine
作者:Paul L. Coe、Ratnakar R. Talekar、Richard T. Walker
DOI:10.1016/0022-1139(94)03070-7
日期:1994.10
we were able to obtain 1-(2',3'-didehydro-2',3'-dideoxy-,β-d-ribofuranosyl)-5-fluorouracil (6), 1-(2',3'-didehydro-2',3'-dideoxy-2',3'-difluoro-,β-d-ribofuranosyl)-5-fluorouracil (7), 1-(2',3'-didehydro-2',3'-dideoxy-2-fluoro-β-d-ribofura-nosyl)-5-fluorouracil (8), 1-(2',3'-dideoxy-2',3'-difluoro-β-d-ribofuranosyl)-5-fluorocytosine (10), 2',3'-dideoxy-5-fluorouridine (11), 1-(2',3'-dideoxy-2'-fluoro
描述了通过在-78°C下在氯仿,乙醇和氟代三氯甲烷的混合物中用元素氟对不饱和完整核苷进行氟化,以高收率制备一些新颖的氟代脱氧核苷。这是完整的核苷被元素氟氟化的第一个例子,代表了该元素在生物活性物质合成中的应用迈出了重要的一步。因此,我们能够获得1-(2',3'-didehydro-2',3'-dideoxy-,β-d-rifurfuranosyl)-5-fluorouracil(6),1-(2',3'- Didehydro-2',3'-dideoxy-2',3'-difluoro-,β-d-rifurfuranosyl)-5-fluorouracil(7),1-(2',3'-didehydro-2',3'-双脱氧-2-氟-β-d-呋喃核糖基)-5-氟尿嘧啶(8),1-(2',3'-二脱氧-2',3'-二氟-β-d-呋喃呋喃糖基)-5-氟胞嘧啶(10),2',3'-二脱氧-5-氟尿苷(11),