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 light-emitting device.
user
CC1C=CC(C2CC3C=CC=CC3N2C)C2OC3NC(c4ccccc4)C=CC3C12
assistant