You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2S,3aR,8bS)-6-methoxy-8-phenylmethoxy-1,2,3a,8b-tetrahydrofuro[2,3-b][1]benzofuran-2-carboxylic acid into molecular formula.
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C19H18O6
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