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 2-[4-(15,16-difluoro-4-methyl-4,8,9-triazatetracyclo[8.6.1.02,7.013,17]heptadeca-1(17),2,6,9,11,13,15-heptaen-6-yl)-3,6-dihydro-2H-pyridin-1-yl]acetic acid is given. What is its corresponding molecular formula?
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C22H20F2N4O2
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