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 crth2 antagonist that impacts asthma treatment.
user
COc1ccc(CC(=O)N(C)C2CCc3c(CC(=O)O)c4ccccn4c3C2)cc1
assistant