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 pain treatment. Please represent the molecule in SMILES.
user
CC1CC(F)CCC1OC1CC(C(F)(F)F)CCC1C(=O)Nc1cc[nH]c(=O)c1
assistant