Using O=[N+]([O-])c1cnsc1Br, CC(C)(C)OC(=O)N1CCC(O)CC1 to produce CC(C)(C)OC(=O)N1CCC(Oc2sncc2[N+](=O)[O-])CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.