Using CC(C)(C(=O)c1ccc(SCCCS)cc1)N1CCOCC1, C=C(CBr)C(=O)OC to produce C=C(CSCCCSc1ccc(C(=O)C(C)(C)N2CCOCC2)cc1)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.