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 compound and is classified both as a high luminous efficiency and electroluminescent, with an impact on low driving voltage. Please represent the molecule in SMILES.
user
CC1(C)c2ccccc2-c2ccc(N(c3ccccc3)c3ccc(-c4ccc(-c5ccccc5)cc4)cc3)cc2C1(C)C
assistant