Using CNc1ccc(N2CCOCC2=O)c(C)c1, COC[C@@](N)(C(=O)O)C(=O)OC(C)(C)C to produce COC[C@](N)(C(=O)OC(C)(C)C)C(=O)N(C)c1ccc(N2CCOCC2=O)c(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.