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 receptor antagonist.
user
CCN(CC1CCN(S(=O)(=O)NCCC(=O)O)CC1)C(C)Cc1ccc2c(c1)CCO2
assistant