Using CC(C)(C)OC(=O)NCCC(O)c1cccc(OCC2CCCCCC2)c1 to produce CC(C)(C)OC(=O)NCCC(=O)c1cccc(OCC2CCCCCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.