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): The molecule is a muscarinic antagonist and belongs to the beta2 agonist class of molecules.
user
COc1cc(COc2cccc(C(NC(=O)OC3CN4CCC3CC4)c3ccccc3)c2)c(C=O)cc1-c1ccccc1
assistant