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What is the molecular formula of the molecule [(1R,3R,4R,7S)-3-(6-benzamidopurin-9-yl)-7-[tert-butyl(dimethyl)silyl]oxy-2,5-dioxabicyclo[2.2.1]heptan-1-yl]methyl [(2R,3S,4S,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-fluoro-2-[2-(2-methylpropanoylamino)-6-oxo-1H-purin-9-yl]oxolan-3-yl] phosphite;pyridin-1-ium ?
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C64H71FN11O13PSi
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