You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 8-fluoro-7-(2-fluorophenyl)-5-methyl-4-(4-prop-2-enoylpiperazin-1-yl)pyrido[3,2-d]pyrimidin-6-one .
user
C21H19F2N5O2
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