Using c1ccc(C2SCCCS2)cc1, CCCCC(C=O)NC(=O)OC(C)(C)C to produce CCCCC(NC(=O)OC(C)(C)C)C(O)C1(c2ccccc2)SCCCS1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.