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 ccr1 antagonist.
user
Cc1nnc(C2CCCN2C(=O)NC2CCOc3c(F)ccc(Cl)c32)n1Cc1ccc(Cl)cc1
assistant