You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-amino-6-(8-chloroquinolin-6-yl)-5-(1-methylpyrazol-3-yl)-N-pyrrolidin-3-ylpyrazine-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C22H21ClN8O
assistant