Using O=CCOCCCCOc1c(Cl)cc(OCC=C(Cl)Cl)cc1Cl, NOCC=C(Cl)Cl to produce ClC(Cl)=CCON=CCOCCCCOc1c(Cl)cc(OCC=C(Cl)Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.