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 high luminous efficiency, electroluminescent, and organic electroluminescent device classes of molecules.
user
CC1C=CC(CNC(NCc2ccccc2)c2ccc(-n3c4c(c5ccc(-c6cccc7c6oc6ccccc67)cc53)C=C(c3ccccc3)CC4C)cc2)=CC1
assistant