Using Clc1ccc(OCC2(c3ccc(Br)s3)CO2)cc1, c1nc[nH]n1 to produce OC(COc1ccc(Cl)cc1)(Cn1cncn1)c1ccc(Br)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.