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 anti bacterial and belongs to the anti microbial class of molecules, with the characteristic of being anti biotic.
user
O=CCCc1cc(-c2ccc(Cl)cc2)n[nH]1
assistant