You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (3R,4S)-3-(4-chlorophenyl)-6,7-dimethoxy-1-(4-methylphenyl)sulfonyl-3,4-dihydro-2H-quinoline-4-carbonitrile ?
user
C25H23ClN2O4S
assistant