Using CCOC(=O)C1(C(=O)O)CCN(C(=O)OC(C)(C)C)CC1, CNC to produce CCOC(=O)C1(C(=O)N(C)C)CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.