You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 8-phenyl-9-oxa-2-azatetracyclo[8.8.0.02,6.012,17]octadeca-1(18),3,5,7,10,12,14,16-octaen-7-ol by IUPAC nomenclature, provide its molecular formula.
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C22H15NO2
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