You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to the muscarinic antagonist class of molecules.
user
c1cc2c(cc1-c1ccc(NC3CC4CN(CC5CCOCC5)CC4C3)nn1)OCO2
assistant