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 member of the electroluminescent device class, known to influence improved luminous efficiency, organic electroluminescence, and luminous efficiency, and is characterized as electroluminescent.
user
CC1(C)c2ccccc2-c2cc3c(-c4ccccc4-c4ccccc4)c4ccc(-c5nc6ccccc6o5)cc4c(-c4ccccc4-c4ccccc4)c3cc21
assistant