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system
Name the molecular formula for the molecule established as (3aR,4R,7R,7aS)-2-(4-morpholin-4-ylphenyl)-3a,4,5,6,7,7a-hexahydro-4,7-epoxyisoindole-1,3-dione using the IUPAC nomenclature.
user
C18H20N2O4
assistant