You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(2R)-butan-2-yl]-N-[2-[(4R)-4-[(3-methoxyphenoxy)methyl]-6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl]-2-oxoethyl]propanamide by IUPAC nomenclature, provide its molecular formula.
user
C24H32N2O4S
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