Using Cc1ccc(F)c(NC(=O)Nc2ccc(Oc3ccnc(-c4cc(C(=O)O)c[nH]4)c3)cc2)c1, OCCO to produce Cc1ccc(F)c(NC(=O)Nc2ccc(Oc3ccnc(-c4cc(C(=O)OCCO)c[nH]4)c3)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.