Using O=[N+]([O-])c1ccc(O)cc1, COC(=O)C(CCCCCCO)C(=O)OC to produce COC(=O)C(CCCCCCOc1ccc([N+](=O)[O-])cc1)C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.