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 beta2 agonist.
user
CN1C(=O)c2c(ncn2CC(=O)Nc2nc(-c3ccc(Br)cc3)cs2)N2CCN=C12
assistant