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
N=C(SC(N)C1C=CC(C2CC(c3cccc(-c4ccccc4)c3)N=C(c3ccccc3)N2)=CC1)C1=C2C=CC=CC2CC=C1
assistant