Using COC(=O)CC1(CC(=O)OC)NC(=O)c2c(Cl)cc(Nc3ccncn3)c(=O)n21 to produce O=C1NC(CCO)(CCO)n2c1c(Cl)cc(Nc1ccncn1)c2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.