Using O=C(O)c1ccncc1, Cc1cc(C(=O)c2sc(N)nc2-c2ccco2)ccn1 to produce Cc1cc(C(=O)c2sc(NC(=O)c3ccncc3)nc2-c2ccco2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.