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,6S,7S)-9-(4-methoxyphenyl)-7-phenyl-17-oxa-10-azatetracyclo[8.7.0.01,6.011,16]heptadeca-8,11,13,15-tetraene is given. What is its corresponding molecular formula?
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C28H27NO2
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