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, a organic electronic device, and electroluminescent. Please write the SMILES representation of it.
user
CC1(C)c2ccccc2N(c2c(C#N)c(N3c4ccc(-c5ccccc5)cc4C(C)(C)c4ncccc43)c(C#N)c3c2C(C)(C)C2(c4ccccc4-c4ccccc42)C3(C)C)c2ccc(-c3ccccc3)cc21
assistant