You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S)-2-[[(2R,3S)-2-(1-ethylpyrazol-4-yl)oxolan-3-yl]methylamino]-1-(4-methylpiperidin-1-yl)propan-1-one into its molecular formula.
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C19H32N4O2
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