Using CCOC(=O)CC(=O)CC(=O)OCC, CC(=O)C(=NO)C(=O)OC(C)(C)C to produce CCOC(=O)Cc1[nH]c(C(=O)OC(C)(C)C)c(C)c1C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.