[(2r,3s,5r)-2-[[[(2r,3s,5r)-5-(6-benzamidopurin-9-yl)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]oxolan-3-yl]oxy-(4-chlorophenoxy)phosphoryl]oxymethyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl] Benzoate
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