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? The molecule is a muscarinic receptor antagonist.
user
O=C(C[N+]12CCC(CC1)C(OC(=O)C(Cc1ccccc1)Nc1ccccc1)C2)c1cccs1.O=C([O-])C(F)(F)F
assistant