You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[7-[4-[4-(2,3-dichlorophenyl)piperazin-1-yl]butoxy]-2-oxoquinolin-1-yl]methyl cyclobutanecarboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H33Cl2N3O4
assistant