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 (5R,6S)-3-[(2R)-2,3-bis(prop-2-enoxycarbonylamino)propyl]-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid is given. What is its corresponding molecular formula?
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C20H27N3O8
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