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 organic light-emitting molecule has an effect on light-emitting device.
user
c1ccc(-c2nc(-c3ccccc3)nc(-c3ccc(C4(c5ccccc5)c5ccccc5-c5cc6c7ccccc7c7ccccc7c6cc54)cc3)n2)cc1
assistant