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-c2ccc3c4cc(-c5cccc(-c6ccccc6NC6=CC7(C=CC=C7)C=C6)c5)ccc4n(-c4ccc5ccccc5c4)c3c21
assistant