Using COC(=O)c1c(Oc2nc(OC)cc(OC)n2)cccc1C(C)=O, C=CCON to produce C=CCON=C(C)c1cccc(Oc2nc(OC)cc(OC)n2)c1C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.