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 4-(5-oxo-4,6-dihydro-2H-cyclopenta[c]pyrrol-4-yl)-1,4-dihydrofuro[3,4-c]pyrazol-6-one .
user
C12H9N3O3
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