Using COc1ncccc1-c1ncc(-c2cccc(Nc3cc(C)ccn3)n2)o1 to produce Cc1ccnc(Nc2cccc(-c3cnc(-c4ccc[nH]c4=O)o3)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.