Using CCOC(=O)CNCc1ccc(OC)cc1OC, COC(=O)c1scc(Br)c1CBr to produce COC(=O)CN(Cc1ccc(OC)cc1OC)Cc1c(Br)csc1C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.