You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: It belongs to the pain treatment class of molecules.
user
CCC12CC(C)(COCc3ccccc3)C(OC)C3Oc4c(O)ccc5c4C31CCN(CC1CC1)C2C5
assistant