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