You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(3a-methyl-1,5-dioxo-2,3-dihydropyrrolo[1,2-a]quinazolin-4-yl)-N-[2-(2-ethylanilino)-2-oxoethyl]-N-methylpropanamide into its molecular formula.
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C26H30N4O4
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