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: The molecule is a organic light-emitting device and belongs to the organic light-emitting class of molecules. Please write the SMILES representation of it.
user
c1ccc(-c2ccc(-c3ccc(N(c4ccccc4)c4ccc(-c5ccc(N(c6ccccc6)c6cccc(-c7ccc8c9ccccc9c9ccccc9c8c7)c6)cc5)cc4)cc3)cc2)cc1
assistant