You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a organic light-emitting device.
user
c1ccc(-c2ccccc2N(c2ccc(-c3ccc4c(c3)Oc3cccc5c3N4c3ccccc3C53c4ccccc4-c4ccccc43)cc2)c2cccc3c2oc2ccccc23)cc1
assistant