You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 1-methyl-3-[(1R)-1-(6-methyl-1H-benzimidazol-2-yl)ethyl]-1-[2-(5-propan-2-yl-1,2,4-oxadiazol-3-yl)ethyl]urea into molecular formula.
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C19H26N6O2
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