Using CCCCCN1C(=O)C(CO)(c2cc3c(cc2O)OCO3)c2c(Cl)ccc(Cl)c21 to produce CCCCCN1C(=O)C2(COc3cc4c(cc32)OCO4)c2c(Cl)ccc(Cl)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.