Using COc1ccc(-c2nc3ccc(Br)cc3nc2-c2ccc(OC)cc2)cc1, C=CC(=O)OC to produce COC(=O)/C=C/c1ccc2nc(-c3ccc(OC)cc3)c(-c3ccc(OC)cc3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.