Using CCOC(=O)CBr, COc1cc2c(cc1O)-c1c(-c3cccs3)cc(C(=O)N(C)C(C)(C)C)n1CC2 to produce CCOC(=O)COc1cc2c(cc1OC)CCn1c(C(=O)N(C)C(C)(C)C)cc(-c3cccs3)c1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.