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: The molecule is organic electroluminescent and electroluminescent.
user
c1ccc2c(-c3c4ccccc4c(-c4cc(-c5ccncc5)nc(-c5ccc(-c6ccc7c(c6)c6cnccc6n7-c6cccc7ccccc67)cc5)c4)c4ccccc34)cccc2c1
assistant