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 belongs to the electroluminescent class of molecules. Please write the SMILES representation of it.
user
CC1(C)c2ccccc2-c2cc(-c3cccc(-c4nc(-c5ccccc5)nc(-c5cc6ccccc6c6ccccc56)n4)c3)c3ccccc3c21
assistant