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 light-emitting device class of molecules.
user
CC=CC1C(C)c2ccccc2N1c1ccc(-c2cc(C#N)cc(-c3c(C#N)cccc3-n3c4c(c5ccccc53)C=CCC=C4)c2)cc1
assistant