Using COc1cc(B2OC(C)(C)C(C)(C)O2)ccc1O, O=C(Nc1nc2ccc(Br)cn2n1)c1cccnc1 to produce COc1cc(-c2ccc3nc(NC(=O)c4cccnc4)nn3c2)ccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.