Using NNc1cnc2ccc(Br)cc2n1, CC(C)(C)OC(=O)N1CCC(C(=O)O)CC1 to produce CC(C)(C)OC(=O)N1CCC(C(=O)NNc2cnc3ccc(Br)cc3n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.