Using COC(=O)Cc1cccc(C=O)c1, CCOCc1nc2c(N)nc3ccccc3c2n1CCCN to produce CCOCc1nc2c(N)nc3ccccc3c2n1CCCNCc1cccc(CC(=O)OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.