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 ra inhibitor.
user
CN1CCCC1COc1nc2c(c(N3CCn4c(cnc4Br)C3)n1)CCN(c1cccc3cccc(Cl)c13)C2
assistant