You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a ccr2 antagonist.
user
O=C(CN1CCc2ccc(C(F)(F)F)cc2C1)NC1CN(C2CCOCC2)CC1CCc1ccccn1
assistant