3-(((4aR,6R,7R,7aR)-4a-ethyl-7-fluoro-6-(4-(((4-methoxyphenyl)diphenylmethyl)amino)-2-oxopyrimidin-1(2H)-yl)-2-oxidotetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-2-yl)oxy)propanenitrile

2'-氟-2'-脱氧尿苷