You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (4R)-N-(2,5-dimethylphenyl)-4-(4-methylsulfanylphenyl)-4,6-dihydropyrrolo[1,2-a][1,4]benzodiazepine-5-carboxamide into molecular formula.
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C28H27N3OS
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