You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[2-[1-(2-cyanopropoxy)ethoxy]ethylamino]-1-cyclopropyl-7-methoxy-4-oxoquinoline-3-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H27N3O6
assistant