Using COc1cc(CBr)ccn1, CCOC(=O)c1cc(B2OC(C)(C)C(C)(C)O2)c2ccccc2n1 to produce CCOC(=O)c1cc(Cc2ccnc(OC)c2)c2ccccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.