1 CKU (3~{S},4~{R},5~{R})-4,5-bis(oxidanyl)-1-propyl-piperidine-3-carboxylic acid 1.000 2 SJ5 (3s,4r,5r)-4,5-dihydroxypiperidine-3-carboxylic acid 0.786 3 VGO (3~{S},4~{S})-4,5,5-tris(oxidanyl)piperidine-3-carboxylic acid 0.733 4 VON (3~{S},4~{S},5~{S},6~{R})-4,5,6-tris(oxidanyl)piperidine-3-carboxylic acid 0.733 5 VP5 (3~{S},4~{R})-4,5,5-tris(oxidanyl)piperidine-3-carboxylic acid 0.733 6 5HN 5-hydroxypyridine-3-carboxylic acid 0.714 7 GIF D-galacto-isofagomine 0.714 8 IFM 5-hydroxymethyl-3,4-dihydroxypiperidine 0.714 9 EF9 (3s)-1-[(2s)-2-methyl-3-sulfanyl-propanoyl]piperidine-3-carboxylic acid 0.706