You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It belongs to the high luminous efficiency class of molecules. Please represent the molecule in SMILES.
user
c1ccc(-c2c(N(c3ccccc3)c3ccc4c(c3)Sc3ccccc3C43c4ccccc4-c4cccc5cccc3c45)ccc3ccccc23)cc1
assistant