Using S=C=Nc1ccc(Br)cc1, CNc1ccc(Oc2ccnc(C(=O)OC(C)(C)C)c2)cc1N to produce Cn1c(Nc2ccc(Br)cc2)nc2cc(Oc3ccnc(C(=O)OC(C)(C)C)c3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.