You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-acetyl-9-amino-7-methyl-4,7,8,9-tetrahydropyrido[2,3-g][1,4]benzoxazin-3-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H17N3O3
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