You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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N-methyl-3-(4-oxo-5,6,7,8-tetrahydro-3H-[1]benzothiolo[2,3-d]pyrimidin-2-yl)-N-[(1R)-1-phenylethyl]propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H25N3O2S
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