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 light-emitting device.
user
CC1(C)c2ccccc2N(c2cc(-c3ccc(N(c4ccccc4)c4ccc5c(c4)c4ccccc4n5-c4ccccc4)cc3)c3oc4ccccc4c3c2)c2ccccc21
assistant