You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 14-(1,2,3,4,4a,5,7,7a-octahydropyrrolo[3,4-b]pyridin-6-yl)-N-[4-(diaminomethylideneamino)butyl]-15-fluoro-18-methylidene-12-oxa-1-azapentacyclo[11.7.1.02,11.04,9.017,21]henicosa-2,4,6,8,10,13(21),14,16,19-nonaene-19-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C33H36FN7O2
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