Using COc1cccc(-c2nc3ncn(Cc4ccccc4)c3c(=O)[nH]2)c1 to produce O=c1[nH]c(-c2cccc(O)c2)nc2ncn(Cc3ccccc3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.