Using CI, CCOC(=O)c1ccc(N(NC(C)=O)C(=O)OC(C)(C)C)cc1 to produce CCOC(=O)c1ccc(N(C(=O)OC(C)(C)C)N(C)C(C)=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.