You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): It belongs to the pain treatment class of molecules.
user
Cn1nc2c(c1-c1cc(F)c(F)c(F)c1)CC1CCCC2N1C(=O)c1ccc(F)cc1-n1cncn1
assistant