Using CCCCCCCCCCCCCCCCCCOCC1CO1, N=C(N)NCCC[C@H](N)C(=O)O to produce CCCCCCCCCCCCCCCCCCOCC(O)CN[C@@H](CCCNC(=N)N)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.