You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-tert-butyl-2-[(2,6-dichlorophenyl)methyl-[2-(2-oxobenzo[cd]indol-1-yl)acetyl]amino]propanamide .
user
C27H27Cl2N3O3
assistant