1 JLP (2s)-2-azanyl-6-[E-[5-(hydroxymethyl)-2-methyl-3-oxidanyl-pyridin-4-yl]methylideneamino]hexanoic acid 1.000 2 LLP (2s)-2-amino-6-[[3-hydroxy-2-methyl-5-(phosphonooxymethyl)pyridin-4-yl]methylideneamino]hexanoic acid 0.769 3 FQA N~6~-benzyl-L-lysine 0.727 4 3QN (E)-N~6~-{2-hydroxy-3-methyl-6-[(phosphonooxy)methyl]benzylidene}-L-lysine 0.704