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 cox2 inhibitor.
user
CCN(C(=O)O)c1c(C(=O)c2cccc(C)c2)[nH]c2cc(Cl)ccc12
assistant