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: The molecule is a organic electroluminescent device and is electroluminescent.
user
CC1C=CC(c2nc(-c3ccccc3)nc(-n3c4ccc(-c5ccc6[nH]c7c8c(ccc7c6c5)C5(c6ccccc6-c6ccccc65)c5ccccc5-8)cc4c4ccc5c(c43)-c3ccccc3C53c4ccccc4-c4ccccc43)n2)=CC1
assistant