L-Gulose
IUPAC 名称
(3S,4S,5S,6S)-6-(hydroxymethyl)oxane-2,3,4,5-tetrol
描述
Gulose is an aldohexose sugar and a C-3 epimer of galactose. It is an unnatural monosaccharide that exists as a syrup with a sweet taste. It is soluble in water and slightly soluble in methanol. Both the D- and L-forms are not fermentable by yeast. L-gulose is an L-hexose sugar and an intermediate in the biosynthesis of L-Ascorbate (vitamin C). It can be oxidized to L-guluno-1-4-lactone and it is also produced by the hydrolysis of L-gulose-1-P. Vitamic C is an important antioxidant and an enzyme cofactor. Higher plants and higher animals (but not humans) can synthesize ascorbate. Plants provide the major dietary vitamin C source for humans. The plant ascorbate biosynthesis pathways have only been recently proposed and they differ from what was found in mammals. [HMDB]
异构
OC[C@@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O
InChI标识符
InChI=1S/C6H12O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/h2-11H,1H2/t2-,3+,4-,5-,6?/m0/s1
键
WQZGKKKJIJFFOK-QRXFDPRISA-N