Using COS(=O)(=O)OC, CC(C)(O)[C@H]1C(=O)N2[C@@H]1CCOC2(C)C to produce COC(C)(C)[C@H]1C(=O)N2[C@@H]1CCOC2(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.