Using COC(=O)c1ncn(Cc2cnc(OC)c(-c3cccc(Cl)c3)n2)n1 to produce COc1ncc(Cn2cnc(CO)n2)nc1-c1cccc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.