Using Cc1sc(CNC(=O)OC(C)(C)C)nc1C(=O)O, CCN(CC)CC to produce Cc1sc(CNC(=O)OC(C)(C)C)nc1C(N)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.