Using C1COCCN1, COc1cc(S(=O)(=O)Cl)ccc1-c1nc2ncncc2[nH]1 to produce COc1cc(S(=O)(=O)N2CCOCC2)ccc1-c1nc2ncncc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.