You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[[5-[5-[4-(2-methylpropyl)phenyl]-1,2,4-oxadiazol-3-yl]pyridin-2-yl]methylamino]cyclobutane-1-carbaldehyde by IUPAC nomenclature, provide its molecular formula.
user
C23H26N4O2
assistant