Using CC(=O)c1ccc2c(c1)CN(C(=O)OC(C)(C)C)CCO2, COC(=O)OC to produce COC(=O)CC(=O)c1ccc2c(c1)CN(C(=O)OC(C)(C)C)CCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.