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)c2ccc(-c3cccc4c3oc3ccccc34)cc2Oc2c1ccc1c2oc2ccccc21
assistant