You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[2-[[[5-oxo-4-(4-sulfanylanilino)-6H-pyrido[4,3-d]pyrimidin-2-yl]amino]methyl]phenyl]cyclopropanesulfonamide .
user
C23H22N6O3S2
assistant