Using COC(=O)/C(=C\C1CCOCC1)NC(=O)OC(C)(C)C to produce COC(=O)[C@H](CC1CCOCC1)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.