You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-(3-cyano-4,5-dimethylthiophen-2-yl)-2-(4,6,8-trimethyl-2-oxoquinolin-1-yl)propanamide into its molecular formula.
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C22H23N3O2S
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