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Under IUPAC nomenclature, a molecule named tert-butyl-[[(2S)-4-[[(2R)-5,11-dioxo-1,4-diazatricyclo[6.3.1.04,12]dodeca-8(12),9-dien-2-yl]methyl]morpholin-2-yl]methyl]carbamic acid is given. What is its corresponding molecular formula?
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C21H30N4O5
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