Using O=C(O)C(F)F, CC(C)(C)OC(=O)N1CCO[C@H](CNc2nc(Cl)cc3nccnc23)C1 to produce O=C(C(F)F)N1CCO[C@H](CNc2nc(Cl)cc3nccnc23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.