英文名称
[5-(6-amino-2,4-dioxo-1H-pyrimidin-3-yl)-4-benzoyloxy-2-ethyloxolan-3-yl] benzoate;[3,4-dibenzoyloxy-5-(5,6-diamino-2,4-dioxo-1H-pyrimidin-3-yl)oxolan-2-yl]methyl benzoate;[3,4-dibenzoyloxy-5-(2,6-dioxo-3,7-dihydropurin-1-yl)oxolan-2-yl]methyl benzoate