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
C1=CCC(c2ccc3c(c2)c2cc(-c4ccccc4)ccc2n3-c2ccc3c(c2)oc2cccc(C4NC(c5ccccc5)=CC(c5ccccc5)N4)c23)C=C1
assistant