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 2-methyl-1-[1-(2-propan-2-yloxyethyl)piperidin-4-yl]-3-[2-(2-pyrrolidin-1-yl-1,3-thiazol-4-yl)ethyl]guanidine into molecular formula.
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C21H38N6OS
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