You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: It belongs to both the pain treatment and p2x3 antagonist classes of molecules.
user
O=C(O)Oc1cc(OC(=O)O)c(C(=O)N(Cc2cccc(OC3C=CCCC3)c2)C2CCCc3ccccc32)cc1OC(=O)O
assistant