Using O=S1(=O)CCCOc2cc(F)ccc21, COC[C@H](C)Oc1cc(O)cc(C(=O)O)c1 to produce COC[C@H](C)Oc1cc(Oc2ccc3c(c2)OCCCS3(=O)=O)cc(C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.