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: It belongs to the organic light-emitting device class of molecules.
user
c1ccc(-c2cccc(N(c3ccc4c(c3)C(c3ccccc3)(C3(c5ccccc5)c5ccccc5-c5ccc(N(c6cccc(-c7ccccc7)c6)c6cccc7c6oc6ccccc67)cc53)c3ccccc3-4)c3cccc4c3oc3ccccc34)c2)cc1
assistant