You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S)-2-[(4E,7aR)-7a-methyl-4-[(2Z)-2-(2-methylidenecyclohexylidene)ethylidene]-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]-N-(cyclooctatetraenyl)propanamide into its molecular formula.
user
C30H39NO
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