Using CCCCNc1c(C(=O)OCC)c(C)nc(NCC(C)C)c1[N+](=O)[O-] to produce CCCCNc1c(N)c(NCC(C)C)nc(C)c1C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.