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 (2S,3R)-3-(2-amino-2-carbamimidoyliminoethyl)-4-oxo-1-[(2-phenylphenyl)carbamoyl]azetidine-2-carboxylic acid is given. What is its corresponding molecular formula?
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C20H20N6O4
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