Using CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)O, OC(COCc1ccccc1)[C@@H]1CCCN1 to produce CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)N1CCC[C@H]1C(O)COCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.