Using O=c1ccoc2cc(OCCCBr)ccc12, COc1ccc2c(c1)OC(CN)CO2 to produce COc1ccc2c(c1)OC(CNCCCOc1ccc3c(=O)ccoc3c1)CO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.