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 p2x3 antagonist.
user
CC(C)Oc1ccc(Nc2ccc(OCCCO)cc2Cc2ccc(Cl)cc2)cc1F
assistant