Using O=c1cccn[nH]1, CC(C)(C)OC(=O)N1CCC(Br)CC1 to produce CC(C)(C)OC(=O)N1CCC(n2ncccc2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.