Using OB(O)c1cccc(O)c1, Cc1nc(N)nc2c1cc(Br)c(=O)n2C1CCCC1 to produce Cc1nc(N)nc2c1cc(-c1cccc(O)c1)c(=O)n2C1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.