You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is anti biotic.
user
Cn1nnnc1SCC1=C(C(=O)O)N2C(=O)C(Nc3cc[n+](CC(=O)O)cc3)C2SC1.[OH-]
assistant