Using CCCOc1ccc(CN)cc1O, CO/C=C1/C(=O)NC(=O)c2cc(OC)c(Br)cc21 to produce CCCOc1ccc(CNC=C2C(=O)NC(=O)c3cc(OC)c(Br)cc32)cc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.