Using CCCCOC(=O)/C=C/c1ccc(OC)nc1N(CC1COC(=O)O1)C(=O)C(C)(C)C to produce CCCCOC(=O)CCc1ccc(OC)nc1N(CC1COC(=O)O1)C(=O)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.