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