Using CC(C)(C)OC(=O)C=CCCCCc1ccccc1, COc1ccc(S)cc1OC to produce COc1ccc(SC(CCCCc2ccccc2)CC(=O)OC(C)(C)C)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.