Using Nc1nc(Br)cn2nc(-c3ccco3)nc12, CC(C)(C)OC(=O)N1CC=C(B2OC(C)(C)C(C)(C)O2)CC1 to produce CC(C)(C)OC(=O)N1CC=C(c2cn3nc(-c4ccco4)nc3c(N)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.