Fig. 6

Synthesis of 2′-deoxynucleoside derivatives by the combination of BEPT protocol and photocatalyzed C–O bond editing techniques (1,4-dihydroisonicotinoyl (DHIN) was used as a stereo-controlling and deoxygenation-initiating group, and the direct saturation of the DHIN group to isonicotinoyl (IN) group was found to be the major side reaction).