You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a organic electroluminescent element and is electroluminescent. Please represent the molecule in SMILES.
user
c1ccc(-c2cc(-c3ccccc3)cc(-c3ccc4c5ccccc5n(-c5cccc(-c6cccc(-c7nc(-c8ccccc8)nc(-c8cccc9c8oc8ccccc89)n7)c6)c5)c4c3)c2)cc1
assistant