You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1E)-1-(5-butan-2-ylcyclohexa-2,4-dien-1-ylidene)-4-tert-butyl-2-methyl-8-oxo-3,4-dihydropyrido[1,2-a]pyrazine-7-carboxylic acid into its molecular formula.
user
C24H32N2O3
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