Using Nc1nc2c(ncn2CCC(CO)CO)c(=O)[nH]1, CC(=O)Cl to produce CC(=O)Nc1nc2c(ncn2CCC(CO)CO)c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.