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 pde4 inhibitor that belongs to both the anti inflammatory and crth2 antagonist classes of molecules, and it impacts asthma treatment.
user
O=C(O)c1cccc(SCl)c1
assistant