Using CCOC(=O)C(CC(=O)O)=C(c1cccc(OC)c1)c1cccc(OC)c1 to produce CCOC(=O)C(CCO)=C(c1cccc(OC)c1)c1cccc(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.