You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: It is a molecule that belongs to the organic electroluminescent device, electroluminescent, and high luminous efficiency classes, and it has an effect on low driving voltage as well as impacts luminous efficiency.
user
c1ccc(-c2nc(-c3ccccc3)nc(-c3cccc(-n4c5cccc6c5c5c7c(cccc7c7oc8ccccc8c7c54)-c4ccccc4-6)c3)n2)cc1
assistant