You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the pain treatment class of molecules. Use the above information to create a molecule.
user
CC(=O)N(C)c1cnn(C(=O)N2CC3(CCN(Cc4ccc(N5CCOCC5)cc4C)CC3)C2)c1
assistant