Using CCOC(=O)C(C)Br, COC(=O)c1c(C=NO)cccc1Oc1nc(OC)cc(OC)n1 to produce CCOC(=O)C(C)ON=Cc1cccc(Oc2nc(OC)cc(OC)n2)c1C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.