Using CCOC(=O)c1cc(CC(C)(C)NC(=O)OC(C)(C)C)n(CCOC)n1 to produce COCCn1nc(C(=O)O)cc1CC(C)(C)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.