You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-[2-[(4-fluorophenyl)methylcarbamoyl]-8,8-dimethyl-3,4-dioxo-2,6,7,9-tetrahydropyrido[1,2-a]pyrimidin-9-yl]-N,N,N'-trimethyloxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H28FN5O5
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