You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a cb1 antagonist. Use the above information to create a molecule.
user
Cc1c(C(=O)NN2CCCCC2)nn(-c2ccc(F)cc2Cl)c1-c1ccc(C2CC2)cc1
assistant