You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a mch receptor antagonist.
user
COc1ccc(-c2ccc(OC(=O)Nc3ccc4nc(N(C)C5CCN(C)C5)sc4c3)cc2)c(Cl)c1
assistant