Using Clc1ncc(Br)cn1, CCS(=O)(=O)Nc1ncnc(OCCO)c1-c1ccc(C)cc1 to produce CCS(=O)(=O)Nc1ncnc(OCCOc2ncc(Br)cn2)c1-c1ccc(C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.