You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a organic light-emitting device.
user
CC1(C)c2ccccc2N(c2cc(-c3ccccc3-c3ccccc3C#N)cc(-n3c4ccccc4c4ccccc43)c2)c2ccccc21
assistant