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 organic electroluminescent compound, organic electroluminescent device, and electroluminescent classes of molecules and has an effect on low driving voltage. Please represent the molecule in SMILES.
user
c1ccc2c(c1)ccc1c2c2c3ccccc3ccc2n1-c1ccc(-c2nc3ccccc3nc2-c2cccc3c2sc2ccccc23)cc1
assistant