Using CCOC(=O)c1cc(OCCNC(=O)OC(C)(C)C)cc(C(=O)OCC)n1 to produce CCOC(=O)c1cc(OCCN)cc(C(=O)OCC)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.