英文名称
2-[2-acetyloxyethoxy-[(2R,3R,4R,5R)-5-[[[(2R,3R,4R,5R)-4-[bis(2-acetyloxyethoxy)methoxy]-5-[4-[[bis(4-methoxyphenyl)-phenylmethyl](15N)amino]-2-oxo(315N)pyrimidin-1-yl]-2-[[cyclododecyloxy-bis(trimethylsilyloxy)silyl]oxymethyl]oxolan-3-yl]oxy-methoxyphosphoryl]oxymethyl]-2-[4-[[bis(4-methoxyphenyl)-phenylmethyl](15N)amino]-2-oxo(315N)pyrimidin-1-yl]-4-hydroxyoxolan-3-yl]oxymethoxy]ethyl acetate