You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a organic light-emitting device that has an effect on luminous efficiency.
user
Cc1ccc2c(c1)oc1c2ccc2c3ccccc3n(-c3cccc4c3oc3cc5sc6ccccc6c(=O)c5cc34)c21
assistant