Using O=c1[nH]nc(CCN2CCN(c3cccc([N+](=O)[O-])c3)CC2)n1CC1CCCCC1 to produce Nc1cccc(N2CCN(CCc3n[nH]c(=O)n3CC3CCCCC3)CC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.