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: It belongs to the pain treatment class of molecules. Please represent the molecule in SMILES.
user
CCOC(=O)c1cc(NC(=O)C2(c3ccc(C(F)(F)F)cc3F)CC2)cc(F)c1-c1cnn(CC)c1
assistant