You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (4Z)-4-[[2-methoxy-6-(3-methylbut-2-enoxy)phenyl]methylidene]-2,2-dimethyl-3-oxo-1,3-oxathiolan-5-one into molecular formula.
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C18H22O5S
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