Using CCOC(=O)c1cc(N)[nH]n1, CCOC(=O)CC(C(C)=O)C(=O)OCC to produce CCOC(=O)Cc1c(C)nc2cc(C(=O)OCC)nn2c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.