You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name [(3aR,4S,7R,7aR)-1,3-dioxo-2-[2-(trifluoromethyl)phenyl]-7,7a-dihydro-3aH-4,7-epoxyisoindol-4-yl]methyl acetate ?
user
C18H14F3NO5
assistant