You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [4-[1-(cyclopropylmethyl)imidazol-2-yl]piperidin-1-yl]-(1-methylindol-3-yl)methanone by IUPAC nomenclature, provide its molecular formula.
user
C22H26N4O
assistant