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. Please write the SMILES representation of it.
user
c1ccc(-c2ccc(-c3nc(-c4ccccc4)nc(-c4cccc5oc6ccc(-c7ccc(-c8cc9cc(-c%10ccc(-c%11nc(-c%12ccccc%12)nc(-c%12ccc(-c%13ccccc%13)cc%12)n%11)c%11c%10oc%10ccc(-c%12ccc(-c%13ccc%14ccc%15ccccc%15c%14c%13)cc%12)cc%10%11)ccc9c9ccccc89)cc7)cc6c45)n3)cc2)cc1
assistant