Using O=C(O)c1cc(-c2cccs2)on1, COc1ccc2ncc(SCCN3CCC(N)CC3)nc2c1 to produce COc1ccc2ncc(SCCN3CCC(NC(=O)c4cc(-c5cccs5)on4)CC3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.