You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 9-[[(1S,2R)-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-1-fluoro-2-methylcyclopropyl]methyl]purin-6-amine into its molecular formula.
user
C17H28FN5OSi
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