You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-cyclopropyl-8-(2,3-dihydro-1H-indol-5-yl)-9-methoxy-4-oxoquinolizine-3-carboxylic acid .
user
C22H20N2O4
assistant