You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): It belongs to the muscarinic receptor antagonist class of molecules.
user
Cc1n(CC(C)C)cc[n+]1C1CCC(C(C(N)=O)(c2ccccc2)c2ccccc2)C1.[Br-]
assistant