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 and is electroluminescent. Please represent the molecule in SMILES.
user
CC1(C)c2ccccc2-c2ccc(-c3ccc4c(c3)c(=O)n(-c3ccccc3)c(=O)n4-c3ccccc3)cc21
assistant