Using O=[N+]([O-])c1ccc2c(c1)CCNCC2, CC(C)(C)OC(=O)OC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CCc2ccc([N+](=O)[O-])cc2CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.