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. 2016 May 3;6:25286. doi: 10.1038/srep25286

Figure 1. Structure of nucleoside analogs.

Figure 1

The chemical structure (A), electrostatic potential map (B), and van der Waals volume (C) of deoxyuridine, thymidine, trifluridine (FTD), and bromodeoxyuridine (BrdU) are shown. Red circles in (A) are the C-5 positions of the pyrimidine rings in the analogs and molecular weights (MW) are shown. Red and blue regions in (B) indicate electron-rich and electron-poor regions, respectively. The C-5 positions of nucleosides in (B) are shown using arrows (FTD and BrdU) and arrowheads (thymidine). Green colors in FTD in (B) indicate fluorines.