You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-(2-cyclopentylpyrazol-3-yl)-2-[[(2R,3R)-3-(4-methylpyrazol-1-yl)butan-2-yl]amino]acetamide into its molecular formula.
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C18H28N6O
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