You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? This molecule is a member of the high luminous efficiency class and influences low driving voltage.
user
CC1(C)c2ccccc2-c2ccc3c(-c4nc(-c5ccccc5)nc(-c5ccccc5)n4)cc4sc5ccccc5c4c3c21
assistant