You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a sting agonist and is cancer treatment.
user
COc1cc2sc(C(=O)CC(C)C(=O)O)cc2cc1OCCCCCOc1cc2sc(C(=O)CC(C)C(=O)O)cc2cc1OC
assistant