Using CCOc1ccc(S(=O)(=O)C(c2cnc(C(=O)O)cc2C)c2cc(F)ccc2F)cc1, NCCO to produce CCOc1ccc(S(=O)(=O)C(c2cnc(C(=O)NCCO)cc2C)c2cc(F)ccc2F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.