英文名称
[(2R,3S,5R)-3-[2-cyanoethoxy-[[(2R,3S,5R)-3-[2-cyanoethoxy-[[(2R,3S,5R)-3-[2-cyanoethoxy(hydroxy)phosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy]phosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy]phosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl 2-cyanoethyl [(2R,3S,5R)-2-(hydroxymethyl)-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl] phosphate