Using C=CCOC(=O)c1ccc2[nH]c(C)c(C)c2c1, COC(=O)COc1ccc(CBr)cc1 to produce C=CCOC(=O)c1ccc2c(c1)c(C)c(C)n2Cc1ccc(OCC(=O)OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.