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-c2ccc(-c3nc(-c4ccc(-c5ccccc5)cc4)nc(-c4ccc5cc6c(cc5c4)C4(c5ccccc5-c5ccccc54)c4ccccc4-6)n3)cc21
assistant