You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a crth2 antagonist and belongs to the asthma treatment class of molecules.
user
CCCC1(CC(=O)OC(C)(C)C)Nc2ccc(N(Cc3c(C)noc3C)S(=O)(=O)c3ccc(F)cc3)cc2N1
assistant