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