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-[2-(2-cyclopropylethynyl)-1,3-thiazol-4-yl]-3-[6-(1-pyrrolidin-2-ylethoxy)pyridin-2-yl]urea into molecular formula.
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C20H23N5O2S
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