You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to both the electroluminescent and light-emitting classes of molecules.
user
CC1(C)c2ccc3c(c2N(c2ccccc2)C2C=Cc4c(c5ccccc5n4-c4cccc(-c5ccccc5)c4)C21)c1ccccc1n3-c1ccc(-c2ccccc2)cc1
assistant