You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a cox2 inhibitor and belongs to the anti inflammatory class of molecules. Please write the SMILES representation of it.
user
O=C(c1nnc(-c2ccncn2)o1)c1cn(Cc2ccc(Cl)cc2)c2ccccc12
assistant