Using CCOC(=O)c1ccc(OCCC2CCc3c(c(OC)c(OC)c(OC)c3OC)CC2)cc1 to produce COc1c2c(c(OC)c(OC)c1OC)CCC(CCOc1ccc(C(=O)O)cc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.