Using CCCCCC(O)c1cccc(OCc2ccc3c(n2)CC(O)C(O)C3)c1 to produce CCCCCC(O)c1cccc(OCc2ccc3c(n2)CCCC3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.