You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is both a muscarinic antagonist and a beta2 agonist.
user
CNC.CS(=O)(=O)OCC(Cc1cnc(C(O)(c2ccccc2)C2CCCCC2)o1)OCc1ccc(Cl)c(Cl)c1
assistant