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
c1ccc(-c2ccc(Nc3cc(-c4ccc(-c5ccccc5)cc4)cc4ccccc34)cc2)cc1
assistant