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 anti allergy.
user
CCc1ccc(S(C)=O)c(C(=O)c2ccc(F)cc2)c1
assistant