Using CC(=O)NC1(C)CCCN(c2c([N+](=O)[O-])cnn2C)CC1 to produce CC(=O)NC1(C)CCCN(c2c(N)cnn2C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.