You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a ccr5 antagonist and belongs to the ccr2 antagonist class of molecules. Please represent the molecule in SMILES.
user
Cc1nn(-c2cccc(C(F)(F)F)c2)c(C2CC2)c1C(=O)N1CCC(N2CCCC2)CC1C
assistant