You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[3-amino-5-(2-methylpropylcarbamoyl)phenyl]-2-[(4-fluorophenyl)methyl]-1-benzofuran-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C27H26FN3O3
assistant