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 both a beta2 agonist and a muscarinic antagonist.
user
CC(C)(C)OC(=O)N(CCCCOC(=O)c1ccc(COc2cccc(C(NC(=O)OC3CN4CCC3CC4)c3ccccc3)c2)o1)CC(O[Si](C)(C)C(C)(C)C)c1ccc(O)c2[nH]c(=O)ccc12.O=CO
assistant