Chromium trioxide/pyridine/acetic anhydride effects smooth oxidation of selectively protected nucleosides to give high yields of 2′ or 3′-ketonucleosides, whose reduction provides the inverted nucleoside epimers.
三氧化铬/
吡啶/
乙酸酐可平滑氧化被选择性保护的核苷,从而提供高收率的2'或3'-酮核苷,其还原反应可提供反向的核苷差向异构体。