You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-ethyl-3-(1-methoxypropan-2-yl)-2-[[1-[3-(trifluoromethyl)phenyl]cyclopropyl]methyl]guanidine into molecular formula.
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C18H26F3N3O
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