Using O=C(O)[C@@H]1CCCN(CCC(O)C2(O)c3ccccc3CCc3ccccc32)C1 to produce O=C(CCN1CCC[C@@H](C(=O)O)C1)C1c2ccccc2CCc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.