Using COC(=O)CCC[C@H]1CC[C@@H]2[C@@H](/C=C/[C@@H](O)COc3ccccc3)[C@H](OC3CCCCO3)C[C@@H]2S1 to produce COC(=O)CCC[C@H]1CC[C@@H]2[C@@H](/C=C/[C@@H](O)COc3ccccc3)[C@H](O)C[C@@H]2S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.