You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N'-hydroxy-2-[(2Z,4E)-5-[2-methoxy-6-(methylamino)pyrimidin-4-yl]hepta-2,4,6-trienoxy]ethanimidamide is given. What is its corresponding molecular formula?
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C15H21N5O3
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