You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-(4-fluorophenyl)-N-methyl-4-oxo-N-[(1R)-1-phenylspiro[1H-2-benzofuran-3,4'-cyclohexane]-1'-yl]butanamide .
user
C30H30FNO3
assistant