Using O=C1CC(c2ccccc2Cl)Cc2nncc(C(F)(F)F)c21, N=C(N)NN to produce N=C(N)NN=C1CC(c2ccccc2Cl)Cc2nncc(C(F)(F)F)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.