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 2-[(1-methyl-2-oxopyrrolidin-3-yl)amino]-7-propyl-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one .
user
C13H17N5O2S
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