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: It belongs to the organic light-emitting device class of molecules.
user
CC1(C)c2ccccc2C2(c3ccccc3-c3ccc(-c4ccc(-c5cccc(N(c6ccccc6)c6ccc7ccccc7c6)c5)cc4)cc32)C2C=CC=CC21
assistant