You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? The molecule is a p2x3 antagonist.
user
CNC(O)c1cc(C)c(-c2nc3cc(C)ccn3c2CC2CN(C(=O)OC)CCO2)cc1F
assistant