Using COC(=O)[C@@H]1CC[C@@H](NC(=O)OC(C)(C)C)[C@H](OC)C1 to produce CO[C@@H]1C[C@H](C(=O)O)CC[C@H]1NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.