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: The molecule is a organic electroluminescent device, phosphorescent, and electroluminescent compound. Please represent the molecule in SMILES.
user
c1ccc(-c2cncc(-c3cccc(-c4ccccc4-c4cccc(-c5cncc(-c6ccccn6)c5)c4)c3)c2)nc1
assistant