You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-(4-chloro-2,5-dimethoxyanilino)-7-methyl-1,8-naphthyridin-3-yl]-pyrrolidin-1-ylmethanone;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H24Cl2N4O3
assistant