You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 26-[4-(4-phenylnaphthalen-1-yl)-[1]benzofuro[3,2-d]pyrimidin-2-yl]-25-oxa-26-azaheptacyclo[20.2.1.14,7.05,24.06,11.012,17.018,23]hexacosa-1(24),2,4,6(11),7,9,12,14,16,18(23),19,21-dodecaene by IUPAC nomenclature, provide its molecular formula.
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C50H27N3O2
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