Using CCOC(=O)COc1ccccc1C=CC(C)=[SH]1=CC(=O)NC1=S to produce CC(C=Cc1ccccc1OCC(=O)O)=[SH]1=CC(=O)NC1=S, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.