You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[4-(6,7-dihydro-5H-pyrrolo[1,2-a]imidazol-3-yl)phenyl]-2-(4-propan-2-ylsulfanylphenyl)acetamide into its molecular formula.
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C23H25N3OS
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