Using O=C([O-])O, Cc1nc(NC(=O)OC(C)(C)C)sc1C(=O)O to produce Cc1nc(N(C)C(=O)OC(C)(C)C)sc1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.