You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-cyclobutyl-8-(5-methyltriazol-1-yl)-1,2,4,5-tetrahydro-[1,4]diazepino[1,7-a]benzimidazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H22N6
assistant