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: The molecule is a muscarinic antagonist and belongs to the muscarinic receptor antagonist class of molecules.
user
O=Cc1ccc(NC(=O)C2CCNCC2)cc1
assistant