You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3aS,3bS,9aR,9bR,11aS)-6-ethyl-9a,11a-dimethyl-7-oxo-N-[2-(trifluoromethoxy)phenyl]-2,3,3a,3b,4,5,5a,9b,10,11-decahydro-1H-indeno[5,4-f]quinoline-1-carboxamide into its molecular formula.
user
C28H35F3N2O3
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