1 B85 Benzylphosphonic acid 1.000 2 Q02 [(R)-amino(phenyl)methyl]phosphonic acid 0.917 3 Q03 [(R)-amino(cyclohexyl)methyl]phosphonic acid 0.917 4 BOY [(R)-hydroxy(4-methylphenyl)methyl]phosphonic acid 0.846 5 SYC (pyridin-2-ylmethyl)phosphonic acid 0.833 6 SDF [(R)-(2,4-dichlorophenyl)(sulfanyl)methyl]phosphonic acid 0.786 7 1OS [(R)-amino(4-carbamimidoylphenyl)methyl]phosphonic acid 0.733 8 787 (phenyl-phosphono-methyl)-phosphonic acid 0.733 9 M3Q [(quinolin-8-yl)methyl]phosphonic acid 0.733