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system
Name the molecular formula for the molecule established as (2S,12R,16R)-9-methyl-15-methylidene-5,14-diphenyl-17-oxa-5,14-diazapentacyclo[9.5.1.02,10.03,7.012,16]heptadec-9-ene-4,6,13-trione using the IUPAC nomenclature.
user
C28H24N2O4
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