Using CC(C)(CO)[C@@H](O)C(=O)NCCC(=O)O, COOC(OOC)c1ccc(OC)cc1 to produce COc1ccc(C2OCC(C)(C)C(C(=O)NCCC(=O)O)O2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.