Using COC(=O)/C=C/c1ccc(OCCCC(=O)OC)cc1OCCCCCO to produce COC(=O)CCCOc1ccc(CCC(=O)OC)c(OCCCCCO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.