Using COC(=O)Cc1cccc(C=O)c1, CCCCCNc1nc(N)nc(C)c1CCCCN to produce CCCCCNc1nc(N)nc(C)c1CCCCNCc1cccc(CC(=O)OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.