Using CCOC(=O)c1cnc2c3cc([N+](=O)[O-])ccc3c(C)cn2c1=O to produce Cc1cn2c(=O)c(C(=O)O)cnc2c2cc([N+](=O)[O-])ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.