You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-bromo-N-[1-[4-[3-[4-(diethylamino)butyl]piperidine-1-carbonyl]-3-methylphenyl]-5-oxopyrrolidin-3-yl]thiophene-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H41BrN4O3S
assistant