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system
Name the molecular formula for the molecule established as 2-methylpent-4-yn-2-yl 2-[[(1R,3R,4S)-3-(4-amino-5-methyl-2-oxopyrimidin-1-yl)-1-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-2,5-dioxabicyclo[2.2.1]heptan-7-yl]oxy-[di(propan-2-yl)amino]phosphanyl]acetate using the IUPAC nomenclature.
user
C46H57N4O9P
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