You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to the organic light-emitting device class of molecules.
user
Cc1ccc2c3c(cccc13)-c1c-2c(-c2ccccc2)c2cccnc2c1-c1ccccc1
assistant