You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: It belongs to the organic light-emitting device class of molecules. Please write the SMILES representation of it.
user
c1ccc(-c2cccc(-c3ccc4oc5cccc(-c6nc(-c7ccccc7)cc(-c7ccccc7)n6)c5c4c3)c2)cc1
assistant