You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: It has an effect on improved luminous efficiency.
user
CN1C(c2cccc(-n3c4ccccc4c4ccccc43)c2)=NN2C=CC=C(c3ccc(-c4ccc5c(c4)c4ccccc4n5-c4ccccc4)cc3)C21
assistant