You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It has an effect on improved luminous efficiency. Please represent the molecule in SMILES.
user
CC1(C)c2ccccc2-c2ccc(N(c3ccc(-c4ccccc4)cc3)c3ccc4c(c3)c3c(n4-c4ccc(-c5ccccc5)cc4)-c4cccc5cccc-3c45)cc21
assistant