1 QQZ Phosphonooxy-[[[6-(1~{H}-1,2,3,4-tetrazol-5-yl)pyridin-3-yl]sulfonylamino]methyl]borinic acid 1.000 2 A1M Phosphonooxy-[[[4-(1~{H}-1,2,3,4-tetrazol-5-yl)phenyl]sulfonylamino]methyl]borinic acid 0.917 3 A0Y Phosphonooxy-[[[4-(1~{H}-1,2,3,4-tetrazol-5-yl)-2-(trifluoromethyl)phenyl]sulfonylamino]methyl]borinic acid 0.786 4 0NA [({[6-(1h-tetrazol-5-yl)pyridin-3-yl]sulfonyl}amino)methyl]boronic acid 0.750