You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [3-[1-[2-cyano-4-(trifluoromethyl)phenyl]azepane-4-carbonyl]-4-(oxan-4-yl)phenyl]-methyl-oxoazanium .
user
C27H29F3N3O3+
assistant