You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name prop-2-enyl 3-(12-ethyl-5-formyl-13-methyl-11-oxo-4,10-diazatricyclo[8.3.0.03,7]trideca-1,3(7),5,12-tetraen-6-yl)propanoate into its molecular formula.
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C21H24N2O4
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