Using COc1ncnc2ccc(-c3cccnc3-c3ccc(F)c(Cl)c3)nc12 to produce O=c1[nH]cnc2ccc(-c3cccnc3-c3ccc(F)c(Cl)c3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.