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
CCNC(=O)N(Cc1ccc(C)cc1)C(=Nc1ccc(Oc2ccnc(C(=O)NC)c2)cc1)NC(C)=O
assistant