You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the electronic device, organic electroluminescent device, and electroluminescent classes of molecules. Use the above information to create a molecule.
user
CCC1(CC)c2ccccc2-c2ccc(-c3nc4ccccc4c4c3C3CCC4C3)cc21
assistant