Using O=Cc1cccc([N+](=O)[O-])c1, CC(=O)N1CCNCC1 to produce CC(=O)N1CCN(Cc2cccc([N+](=O)[O-])c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.