You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a anti biotic and belongs to the anti bacterial class of molecules, with the characteristic of being anti microbial. Use the above information to create a molecule.
user
Cc1c2cc(CO)c(CO)cc2cc(-c2cc(-c3ccccc3)cc(-c3ccccc3)c2)[n+]1C
assistant