Using C=CCO, CC(CCC(=O)O)(c1ccc(O)cc1)c1ccc(O)cc1 to produce C=CCOC(=O)CCC(C)(c1ccc(O)cc1)c1ccc(O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.