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 that fulfills the requirement: The molecule is a organic light-emitting diode.
user
CC1(C)c2ccccc2-c2ccc(N(c3ccc4c(c3)C(C)(C)c3cc(-c5c6ccccc6c(-c6cccc7ccccc67)c6ccccc56)ccc3-4)c3ccc4ccccc4c3)cc21
assistant