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 electroluminescent molecule has an effect on organic electroluminescence.
user
Nc1ccc(-c2ccc3c(c2)sc2ccccc23)c(-c2ccccc2)c1
assistant