You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 3-acetyl-7-[(3-chloro-5-fluoropyrazol-1-yl)methyl]-2-methyl-[1,3]thiazolo[3,2-a]pyrimidin-5-one .
user
C13H10ClFN4O2S
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