1 43W But-3-yn-1-yl trihydrogen diphosphate 1.000 2 0CM But-2-yn-1-yl trihydrogen diphosphate 1.000 3 0CN Buta-2,3-dien-1-yl trihydrogen diphosphate 1.000 4 0CH 4-hydroxybutyl trihydrogen diphosphate 0.929 5 0JX (3e)-4-hydroxybut-3-en-1-yl trihydrogen diphosphate 0.929 6 0K2 4-oxobutyl trihydrogen diphosphate 0.929 7 DMA Dimethylallyl diphosphate 0.929 8 IPE 3-methylbut-3-enyl trihydrogen diphosphate 0.929 9 IPR Isopentyl pyrophosphate 0.929 10 P25 Pentyl trihydrogen diphosphate 0.929 11 0CG Prop-2-yn-1-yl trihydrogen diphosphate 0.923 12 P23 Propyl trihydrogen diphosphate 0.923 13 0CJ 4-oxopentyl trihydrogen diphosphate 0.867 14 0O3 3-(hydroxymethyl)but-3-en-1-yl trihydrogen diphosphate 0.867 15 10D (2e)-4-fluoro-3-methylbut-2-en-1-yl trihydrogen diphosphate 0.867 16 10E (2e)-4-amino-3-methylbut-2-en-1-yl trihydrogen diphosphate 0.867 17 10G (2e)-3-methyl-4-sulfanylbut-2-en-1-yl trihydrogen diphosphate 0.867 18 EIP 4-hydroxy-3-methyl butyl diphosphate 0.867 19 H6P (2e)-4-hydroxy-3-methylbut-2-en-1-yl trihydrogen diphosphate 0.867 20 P22 Ethyl dihydrogen diphosphate 0.846 21 43Q (3s)-1,3-dihydroxy-4-{[(S)-hydroxy(phosphonooxy)phosphoryl]oxy}-2-methylbut-2-ylium, carbokation intermediate 0.812 22 BHI 4-bromo-3-hydroxy-3-methyl butyl diphosphate 0.812 23 S9R [(E)-3-(hydroxymethyl)pent-2-enyl] phosphono hydrogen phosphate 0.812 24 SBH (S)-4-bromo-3-hydroxy-3-methylbutyl diphosphate 0.812 25 IS3 Isopentenyl diphosphate beta-S 0.800 26 EA2 Aminoethanolpyrophosphate 0.786 27 SE6 [(2e)-3-(hydroxymethyl)hexa-2,5-dienyl] phosphono hydrogen phosphate 0.765 28 Y7D (2z)-3-methylhept-2-en-1-yl trihydrogen diphosphate 0.765 29 DP6 (3r)-3-hydroxy-5-{[(R)-hydroxy(phosphonooxy)phosphoryl]oxy}-3-methylpentanoic acid 0.722