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(-c2nc(-c3ccc4c(ccc5ccccc54)c3)nc(-c3cccc4oc5cc6ccncc6cc5c34)n2)cc1
assistant