You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (4R)-4-[2-[3-(difluoromethyl)-6-[4-[4-(oxetan-3-yl)piperazin-1-yl]phenyl]imidazo[4,5-c]pyridin-4-yl]oxyethyl]pyrrolidin-2-one by IUPAC nomenclature, provide its molecular formula.
user
C26H30F2N6O3
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