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-methylsulfanyl-1,3-benzothiazol-6-yl)-3-[(3S)-2-oxo-3,4-dihydro-1H-quinolin-3-yl]propanamide .
user
C20H19N3O2S2
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