You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a organic light-emitting diode and light-emitting, with effects on both low driving voltage and light emission.
user
CC1(C)c2ccccc2-c2nc(-c3cc(-n4c5cc6ccccc6cc5c5c6ccccc6ccc54)c4ccccc4c3)c(-c3ccc4c(c3)sc3ccccc34)nc21
assistant