You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a organic electroluminescent element and belongs to the electroluminescent class of molecules, known to have an effect on electron transport.
user
CC1=NC(C)(C)C(C)(C)N1c1cncc(-c2cc(-c3cncc(N4C(C)=NC(C)(C)C4(C)C)c3)nc(-c3ccc(-c4ccccc4)cc3)n2)c1
assistant