You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-(5-azatricyclo[3.2.1.02,7]octan-1-ylamino)-3-(4-chlorophenyl)-1-oxopropan-2-yl]-1-(2,4-dichlorophenyl)cyclopropane-1-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H26Cl3N3O2
assistant