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system
Translate the chemical IUPAC name 5-[(12R,15R,18S)-12,18-dimethyl-15-(2-methylpropyl)-3,10,13,16-tetraoxo-21-phenyl-1,4,8,11,14,17,20,22-octazabicyclo[17.3.0]docosa-19,21-diene-8-carbonyl]pyridine-2-carbonitrile into its molecular formula.
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C33H40N10O5
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