You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to the pain treatment class of molecules.
user
NS(=O)(=O)c1cccc(NC(=O)c2cc(OC(F)F)cnc2N2CCCC(F)(F)CC2)c1
assistant