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system
Name the molecular formula for the molecule established as 12,15,15-trimethyl-6-nitro-N-prop-2-enyl-3,10-diazatetracyclo[10.2.1.02,11.04,9]pentadeca-2,4(9),5,7,10-pentaene-1-carboxamide using the IUPAC nomenclature.
user
C20H22N4O3
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