Using COCc1nc2cc3c(cc2c(=O)[nH]1)C(Nc1ccc(C(=O)OC(C)(C)C)cc1)CC3, CCN(C(C)C)C(C)C to produce C#CCN(c1ccc(C(=O)OC(C)(C)C)cc1)C1CCc2cc3nc(COC)[nH]c(=O)c3cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.