You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to the pain treatment class of molecules.
user
CCCCCCC(C)(C)c1cc(O)c2c(c1)OC(C)(C)C1(C)CC=C(CO)CC21C
assistant