Using CCn1c(-c2nc(Br)cnc2N)nc2cnccc21, O=C(O)c1ccc(B(O)O)cc1 to produce CCn1c(-c2nc(-c3ccccc3C(=O)O)cnc2N)nc2cnccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.