You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-butan-2-yl-2-[[3-oxo-2-[3-oxo-3-(4-phenylpiperazin-1-yl)propyl]-2H-imidazo[1,2-c]quinazolin-5-yl]sulfanyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H34N6O3S
assistant