Using OC[C@H]1COC2(CCCCC2)O1, Fc1cccc(CSc2nc(Cl)cc(Cl)n2)c1F to produce Fc1cccc(CSc2nc(Cl)cc(OC[C@H]3COC4(CCCCC4)O3)n2)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.