Using CC(C)(C)OC(=O)N(CC=O)CCc1ccc([N+](=O)[O-])cc1, CCOC(=O)CN to produce CCOC(=O)CNCCN(CCc1ccc([N+](=O)[O-])cc1)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.