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
C1=Nc2c(cccc2-c2ccc(-c3nc(-c4ccc5ccccc5c4)nc(-c4ccc5ccccc5c4)n3)cc2)CC1
assistant