You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a organic light-emitting device. Please represent the molecule in SMILES.
user
CC1(C)c2ccccc2-c2ccc(-c3ccc4c(c3)c3c5ccccc5c5c6ccccc6sc5c3n4-c3ccc4ccccc4c3)cc21
assistant