You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
acetylene;N-[N'-(4-methoxyphenyl)carbamimidoyl]furan-2-carboxamide;1-(2-oxo-2-pyrrolidin-1-ylethyl)azepan-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H35N5O5
assistant