Using NS(=O)(=O)c1cc(C(=O)O)c(NCc2ccco2)cc1Cl, NCCO to produce NS(=O)(=O)c1cc(C(=O)NCCO)c(NCc2ccco2)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.