Using CCN(OC)S(=O)(=O)c1c(Cl)ccc2nc(C(C)(C)C)oc12 to produce CCN(OC)S(=O)(=O)c1c(Cl)ccc(N)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.