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 influences improved driving voltage and luminous efficiency. Please represent the molecule in SMILES.
user
c1ccc2cc(-c3ccc4c(c3)oc3ccc(-c5nc(-c6ccc7ccccc7c6)nc(-c6ccc7ccccc7c6)n5)cc34)ccc2c1
assistant