You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): It belongs to the pain treatment class of molecules.
user
NC(=O)c1cc(NC2CCNC2=O)nc(-c2ccc(Nc3ccc(F)cc3)c(N)c2)n1
assistant