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 a cb1 antagonist.
user
CON(C(C)=O)c1c(C)c(=O)n(CC(C)C)c2nc(-c3ccc(Cl)cc3Cl)c(-c3ccc(Cl)cc3)cc12
assistant