Using CC(=O)O[C@H]1C[C@H](C(=O)N2CCCN(C3CCC3)CC2)C1 to produce O=C([C@H]1C[C@H](O)C1)N1CCCN(C2CCC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.