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): It belongs to the p2x3 antagonist class of molecules.
user
C=Cc1cc(N=C(N)N(Cc2ccc(C)cc2)C(=O)N(O)CC(C)C(=O)OC)ccc1OC(C)C
assistant