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 1-[2-[(3R,5R)-3,5-dimethylpiperidin-1-yl]-2-oxoethyl]-3-[(2-fluorophenyl)methyl]thieno[3,2-d]pyrimidine-2,4-dione .
user
C22H24FN3O3S
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