You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? It belongs to the mch antagonist class of molecules.
user
CC1(O)CCN(CC=Cc2ccc(C#Cc3ccc(-c4ccc(Cl)cc4)cn3)cc2)CC1
assistant