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 anti allergic and belongs to both the anti asthmatic and anti allergic agent classes of molecules. The molecule is a leukotriene inhibitor, a anti inflammatory, a leukotriene antagonist, and anti inflammatory agent.
user