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 light-emitting.
user
COc1ccc(N(c2ccc(N(c3ccccc3)c3ccccc3)cc2)c2cccc(N(c3ccc(OC)cc3)c3ccc(N(c4ccccc4)c4ccccc4)cc3)c2)cc1
assistant