You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1R,2S,6S,7S,8R,14S)-7-ethyl-4,13-dimethyl-10-phenyl-4,13-diazatetracyclo[6.5.1.02,6.011,14]tetradec-10-ene-3,5,9,12-tetrone into its molecular formula.
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C22H22N2O4
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