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 is a molecule that belongs to both the organic electroluminescent and electroluminescent classes and has an effect on improved luminous efficiency. Please represent the molecule in SMILES.
user
c1ccc2c(c1)-c1cc3oc4cc(-c5ccc6c(c5)c5ccccc5n6-c5ccc6oc7ccccc7c6c5)ccc4c3cc1C21CCCCC1
assistant