You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a pain treatment.
user
O=C(NCCO)c1ccc(CF)c(-c2cnc3c(Nc4ccc(C(F)(F)F)cc4)ccnc3n2)n1
assistant