Using OB(O)c1ccsc1, Ic1ccc(Oc2ccc(N3CCOCC3)cc2)cc1 to produce c1cc(-c2ccc(Oc3ccc(N4CCOCC4)cc3)cc2)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.