You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
10-[(2-bromophenyl)methoxy]-5,6-dihydro-[1,2,4]triazolo[4,3-d][1,4]benzoxazepine is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H14BrN3O2
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