Using COC(=O)COc1cccc(C=CC(=O)c2c(O)cc(C)n(C)c2=O)c1, C=CCBr to produce C=CCOc1cc(C)n(C)c(=O)c1C(=O)C=Cc1cccc(OCC(=O)OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.