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, high luminous efficiency, and electroluminescent compound.
user
CCC1(CC)c2cc(C=Cc3ccc(-c4cc(-c5ccccc5)c5c6ccccc6c6ccccc6c5c4-c4ccccc4)cn3)ccc2-c2ccc(-n3c4ccccc4c4ccccc43)cc21
assistant