You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule tert-butyl-[[11-[3-[(4-methoxyphenyl)methoxy]nonyl]-1-(4-methylphenyl)sulfonyl-1-azaspiro[5.5]undeca-4,10-dien-3-yl]oxy]-dimethylsilane into molecular formula.
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C40H61NO5SSi
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