Using OCCS, O=S(=O)(c1ccc(C(CC2CCOCC2)c2ccc(-c3ccc(Br)cn3)[nH]2)cc1)C1CC1 to produce O=S(=O)(c1ccc(C(CC2CCOCC2)c2ccc(-c3ccc(SCCO)cn3)[nH]2)cc1)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.