Using Nc1ccc(-c2cnccn2)cn1, O=C(O)Cc1ccc(-c2ccnc(F)c2)nc1 to produce O=C(Cc1ccc(-c2ccnc(F)c2)nc1)Nc1ccc(-c2cnccn2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.