Using CC1(COc2nc(C(=O)O)ccc2Br)COC1, CC(C)(N)c1nccs1 to produce CC1(COc2nc(C(=O)NC(C)(C)c3nccs3)ccc2Br)COC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.