Using CCC(C)c1ccc(-n2c(-c3ccc(Br)nc3)nc3ccccc3c2=O)cc1, OB(O)c1ccccc1 to produce CCC(C)c1ccc(-n2c(-c3cncc(-c4ccccc4)c3)nc3ccccc3c2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.