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 5-[(1-amino-1-oxobutan-2-yl)amino]-3-[[3-(hydroxymethyl)-1,2-thiazol-5-yl]amino]pyrazine-2-carboxamide .
user
C13H17N7O3S
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