You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2R,3S,4S)-4-[tert-butyl(dimethyl)silyl]oxy-2,4-diphenyl-2-pyridin-3-yl-3-trimethylsilyloxybutanenitrile into molecular formula.
user
C30H40N2O2Si2
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