Using CCNC(=O)Nc1nc2cc(Br)cc(Br)c2s1, COc1cncc(B2OC(C)(C)C(C)(C)O2)c1 to produce CCNC(=O)Nc1nc2cc(-c3cncc(OC)c3)cc(Br)c2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.