You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (Z)-3-[4-(2-ethylquinolin-4-yl)-6-methoxy-2-methyl-9H-pyrimido[4,5-b]indol-7-yl]-N,4-dimethylhept-3-en-2-imine is given. What is its corresponding molecular formula?
user