You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to the electroluminescent device, electroluminescent, and organic light-emitting device classes of molecules.
user
c1ccc(-c2ccc3c4ccccc4n(-c4ccc5oc6c7ccccc7cc(-c7nc(-c8ccccc8)nc(-c8ccccc8)n7)c6c5c4)c3c2)cc1
assistant