You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-(4-acetylphenyl)-6,7-dimethyl-1-(3-prop-2-enoxyphenyl)-1H-chromeno[2,3-c]pyrrole-3,9-dione .
user
C30H25NO5
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