You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (3-ethoxy-4,15-dihydroxy-6-methyl-14-methylidene-11-oxo-10-oxatetracyclo[7.7.1.02,7.013,17]heptadec-5-en-12-yl)oxidanium is given. What is its corresponding molecular formula?
user
C20H29O6+
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