Using O=c1c2[nH]c([N+](=O)[O-])nc2n(C2CC2)c(=O)n1C1CC1 to produce Nc1nc2c([nH]1)c(=O)n(C1CC1)c(=O)n2C1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.