You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a p2x3 antagonist.
user
O=c1nc(Nc2ccc(Oc3cnsn3)cc2)n(Cc2ccc(Cl)cc2)c(=O)n1CC(CO)CO
assistant