You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [5-(2,3-dihydro-1,4-benzodioxin-6-ylamino)pyridin-3-yl]-(3,4-dihydro-1H-isoquinolin-2-yl)methanone by IUPAC nomenclature, provide its molecular formula.
user
C23H21N3O3
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