You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a asthma treatment and belongs to the crth2 antagonist class of molecules.
user
CCN(O)S(=O)(=O)c1ccc(-c2c(C)c(CC(=O)O)cc3ccc(F)cc23)cc1
assistant