You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2S)-N-[6-(2-hydroxypropan-2-yl)-1-(2,2,2-trifluoroethyl)benzimidazol-2-yl]-2,3,3-trimethylbutanamide into molecular formula.
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C19H26F3N3O2
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