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 (1R,9S)-4-(4-methoxyphenyl)-8-oxa-4,5-diaza-2-azoniatetracyclo[7.7.0.02,6.011,16]hexadeca-2,5,11,13,15-pentaene;trifluoroborane;fluoride is given. What is its corresponding molecular formula?
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C19H18BF4N3O2
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