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 (2S)-1-[4-[(5-cyano-1,3-thiazol-2-yl)amino]pyrrolo[2,1-f][1,2,4]triazin-2-yl]-2-methylpyrrolidine-2-carboxylic acid .
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C16H15N7O2S
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