You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to the organic light-emitting device class of molecules.
user
O=C(Nc1cc(-c2ccc(-c3nc(-c4ccccc4)nc(-c4ccccc4)n3)cc2)ccc1-c1ccccc1-c1cccc2ccccc12)c1ccccc1
assistant