You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-benzyl-4'-ethoxy-N-ethyl-3',4-diimino-7'-methyl-6'-phenylspiro[1,3-thiazole-5,1'-7bH-azirino[2,1-a]isoindole]-2-amine into molecular formula.
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C29H29N5OS
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