You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(6,7-dimethoxyquinolin-4-yl)oxyphenyl]-4,5-dimethyl-1,3-thiazol-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H21N3O3S
assistant