You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Can you give the molecular formula of the molecule 2-[6-methyl-3-[[(2R,4R)-4-methyl-1-(2,2,2-trifluoroacetyl)piperidin-2-yl]methylamino]-2-oxopyrazin-1-yl]acetic acid ?
user
C16H21F3N4O4
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