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 has an effect on luminous efficiency.
user
c1ccc(-c2cccc3c2sc2c(-c4cccc(-c5nc(-c6ccc7ccccc7c6)nc(-c6ccc7c(c6)oc6ccccc67)n5)c4)cccc23)cc1
assistant