Using CCOC(=O)CCNCC(N)=O, Cc1cn(CC(=O)O)c(=O)[nH]c1=O to produce CCOC(=O)CCN(CC(N)=O)C(=O)Cn1cc(C)c(=O)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.