Using O=C(O)c1c[nH]c(=O)c2cc(S(=O)(=O)Cl)ccc12, NCCO to produce O=C(O)c1c[nH]c(=O)c2cc(S(=O)(=O)NCCO)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.