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: It belongs to the organic electronic device class of molecules.
user
CC1(C)c2cc(C=CC=O)ccc2-c2ccc(C=CC=O)cc21
assistant