You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a organic electroluminescent device and electroluminescent, and it impacts luminous efficiency. Please write the SMILES representation of it.
user
c1ccc(C2Oc3ccc(-c4ccc(-c5c6ccccc6c(-c6ccc7ccccc7c6)c6ccccc56)cc4)cc3C2c2ccccc2)cc1
assistant