Using Nc1nc(N)nc(NC2CC2)n1, CC(C)COC(=O)Cl to produce CC(C)COC(=O)Nc1nc(NC(=O)OCC(C)C)nc(NC2CC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.