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 propan-2-yl 6-methyl-5-(1-morpholin-4-ylethenyl)-2-(1H-pyrazol-5-yl)indolizine-7-carboxylate into molecular formula.
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C22H26N4O3
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