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 (4S,5S)-1,5-dimethyl-4-[1-(2-oxochromen-3-yl)ethylideneamino]-2-phenylpyrazolidin-3-one is given. What is its corresponding molecular formula?
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C22H21N3O3
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