You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(1-acetyl-4-pyrazol-1-yl-3,4-dihydro-2H-quinolin-6-yl)cyclopent-3-ene-1-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C20H22N4O2
assistant