ethyl (4S,5R)-4,5-dihydroxy-6-oxohept-2-enoate

L-threo-Hex-4-enuronic acid, 4,5-dideoxy-4-methyl-2,3-O-(1-methylethylidene)-, methyl ester, (4E)- (9CI)

ethyl 5-carbamoyl-6-oxohept-2-enoate

(3S,4S,5R)-4,5-dihydroxy-3-methoxyhexanal

methyl (4R,5R)-4,5-dimethyl-7-oxohept-2-enoate

[(2R,3R,4S,5R,6R)-4,5-dihydroxy-2-[(1R,2S)-2-hydroxycyclohexyl]oxy-6-(hydroxymethyl)oxan-3-yl] 3-(4-hydroxyphenyl)prop-2-enoate

(3S,4S,5R,6R)-4,5-Dihydroxy-6-(hydroxymethyl)-3-piperidinyl α-D-galactopyranoside