Using O=C(Nc1ccccc1NC(=O)c1cccc([N+](=O)[O-])c1)OC(c1ccncc1)C1CCNCC1 to produce Nc1cccc(C(=O)Nc2ccccc2NC(=O)OCC2CCN(c3ccncc3)CC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.