You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a cyclooxygenase2 inhibitor and is anti inflammatory.
user
NS(=O)(=O)c1cc(F)c(-c2c(-c3cc(Cl)cc(Cl)c3)noc2C(F)F)cc1F
assistant