You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (3aS,4S,9bS)-6,7-dichloro-4-(3-nitrophenyl)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline using the IUPAC nomenclature.
user
C18H14Cl2N2O2
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