Using O=C1OCCc2cc(O)ccc21, CS(=O)(=O)OC[C@@H]1CCCO1 to produce O=C1OCCc2cc(OC[C@@H]3CCCO3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.