6-Azauracil or 8-aza-7-deazaadenine nucleosides and oligonucleotides: the effect of 2′-fluoro substituents and nucleobase nitrogens on conformation and base pairing
作者:Frank Seela、Padmaja Chittepu
DOI:10.1039/b715512c
日期:——
The stereoselective syntheses of 6-azauracil- and 8-aza-7-deazaadenine 2'-deoxy-2'-fluoro-beta-d-arabinofuranosides and employing nucleobaseanionglycosylation with 3,5-di-O-benzoyl-2-deoxy-2-fluoro-alpha-d-arabinofuranosyl bromide as the sugar component are described; the 6-azauracil 2'-deoxy-2'-fluoro-beta-d-ribofuranoside was prepared from 6-azauridine via the 2,2'-anhydro intermediate and transformation