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 compound and belongs to both the electroluminescent and organic electroluminescent device classes of molecules.
user
c1ccc(-c2nc(-c3ccccc3)nc(-c3cccc4c3c3cc5c(cc3n4-c3ccccc3)-c3ccccc3C53c4ccccc4Oc4ccccc43)n2)cc1
assistant