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system
Name the molecular formula for the molecule established as [4-[4-[[9-[(2R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyoxolan-2-yl]purin-6-yl]carbamoyl]phenyl]-2-oxobutyl] 4-[9H-fluoren-9-ylmethoxycarbonyl(methyl)amino]butanoate using the IUPAC nomenclature.
user
C71H77N8O12P
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