You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: It belongs to the pain treatment class of molecules.
user
O=C(CC1CCCCN1S(=O)(=O)c1cccc(C(F)(F)F)c1)N1CCn2c(CCN3CCCC3)ccc2C1
assistant