You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It is a molecule that belongs to both the high luminous efficiency and electroluminescent classes and has an effect on organic electroluminescence.
user
c1ccc(-c2c3c(c(-c4ccccc4)c4ccccc24)-c2ccc(-c4ccc5cc(-c6cccc7c6oc6ccccc67)ccc5c4)c4cccc-3c24)cc1
assistant