Using O=C(O)c1ccsc1, COc1cc2nccc(Cc3ccc4cc(N)ccc4c3)c2cc1OC to produce COc1cc2nccc(Cc3ccc4cc(NC(=O)c5ccsc5)ccc4c3)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.