Using COC(OC)c1nc(-c2ccc3nn(C)nc3c2)c(-c2cccc(C)n2)[nH]1 to produce Cc1cccc(-c2[nH]c(C=O)nc2-c2ccc3nn(C)nc3c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.