You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S)-2-[benzyl(but-3-enyl)amino]-3-[tert-butyl(dimethyl)silyl]oxy-N,N-dimethylpropanamide into its molecular formula.
user
C22H38N2O2Si
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